Which one of the following correctly represents Sodium oxide?
- A
- ✓
- C
- D
Answer: B.
View full solution →Question types
Carbon and its Compounds question types
1,601 questions across 18 question groups — pick any mix to generate a Science paper with step-by-step answer keys.
1,601
Questions
18
Question groups
5
Question types
01
M.C.Q
193 Q→02M.C.Q-[Che-1M]
184 Q→03Assertion - Reasoning (1 Marks)
12 Q→04Assertion - Reasoning [Che-1 M]
12 Q→05Fill in the blank
28 Q→06Fill in the blank [Che-1M]
28 Q→07True-False
6 Q→08True-False [Che-1M]
6 Q→09[1 Mark Questions]
254 Q→10Answer the questions.[Che-1M]
254 Q→11[2 Mark Questions]
139 Q→12Answer the questions.[Che-2M]
139 Q→13[3 Mark Questions]
102 Q→14Answer the questions.[Che-3M]
100 Q→15[5 marks Questions]
61 Q→16case /data -based [Che-4M]
11 Q→17case /data -based (4 Marks)
11 Q→18Answer the questions.[Che-5M]
61 Q→Sample Questions
Carbon and its Compounds questions
One sample from each question group in this chapter. Select any group above to see the full set with answer keys.
In the neighbourhood of your school, hard water required for an experiment is not available. Select from the following groups of salts available in your school, a group each member of which, if dissolved in distilled water, will make it hard :
- ASodium chloride, calcium chloride.
- BPotassium chloride, sodium chloride.
- CSodium chloride, magnesium chloride.
- ✓Calcium chloride, magnesium chloride.
Answer: D.
View full solution →In a locality, hard water, required for an experiment, is not available. However, the following salts are available in the school laboratory:
- Sodium sulphate.
- Calcium sulphate.
- Magnesium chloride.
- Sodium chlorid.
- Calcium chloride.
- Potassium sulphate.
- ✓$2, 3$ and $5$
- B$1, 2$ and $5$
- C$1, 2, 4$ and $6$
- D$3$ and $5$ only
Answer: A.
View full solution →In an experiment to study the properties of ethanoic acid, a student takes about $3 mL$ of ethanoic acid in a dry test tube. He adds an equal amount of distilled water to it and shakes the test tube well. After some time he is likely to observe that.
- AA colloid is formed in the test tube.
- ✓The ethanoic acid dissolves readily in water.
- CThe solution becomes light orange.
- DWater floats over the surface of ethanoic acid.
Answer: B.
View full solution →While studying the saponification reaction, what do you observe when you mix an equal amount of colourless vegetable oil and $20\%$ aqueous solution of $\ce{NaOH}$ in a beaker?
- AThe colour of the mixture has become dark brown.
- BA brisk effervescence is taking place in the beaker.
- ✓The outer surface of the beaker has become hot.
- DThe outer surface of the beaker has become cold.
Answer: C.
View full solution →While cooking, if the bottom of the vessel is getting blackened on the outside, it means that:
- AThe food is not cooked completely.
- BThe fuel is not burning completely.
- CThe fuel is wet.
- DThe fuel is burning completely.
Butanone is a four-carbon compound with the functional group:
- ACarboxylic acid.
- BAldehyde.
- CKetone.
- DAlcohol.
Ethane, with the molecular formula C2H6 has:
- A6 covalent bonds.
- B7 covalent bonds.
- C8 covalent bonds.
- D9 covalent bonds.
Which one of the following correctly represents Sodium oxide?
- A
- ✓
- C
- D
Answer: B.
View full solution →In the neighbourhood of your school, hard water required for an experiment is not available. Select from the following groups of salts available in your school, a group each member of which, if dissolved in distilled water, will make it hard:
- ASodium chloride, calcium chloride.
- BPotassium chloride, sodium chloride.
- CSodium chloride, magnesium chloride.
- DCalcium chloride, magnesium chloride.
Two statements are given $-$ one labelled Assertion $(A)$ and the other labelled Reason $(R)$. Select the correct answer to these questions from the codes $\ce{(a), (b), (c)}$ and $(d)$ as given below :
Assertion $(A)\ :$ Esterification is a process in which a sweet smelling substance is produced.
Reason $(R)\ :$ When esters react with sodium hydroxide an alcohol and sodium salt of carboxylic acid are obtained.
Assertion $(A)\ :$ Esterification is a process in which a sweet smelling substance is produced.
Reason $(R)\ :$ When esters react with sodium hydroxide an alcohol and sodium salt of carboxylic acid are obtained.
- ABoth $A$ and $R$ are true and $R$ is correct explanation of the Assertion.
- ✓Both $A$ and $R$ are true but $R$ is not the correct explanation of the Assertion.
- C$A$ is true but $R$ is false.
- D$A$ is false but $R$ is true.
Answer: B.
View full solution →Two statements are given $-$ one labelled
Assertion $(A)$ and the other labelled
Reason $(R)$. Select the correct answer to these questions from the codes $(a), (b), (c)$ and $(d)$ as given below:
Assertion $(A):$ In a homologous series of alcohols, the formula for the second member is $C _2 H _5 OH$ and the third member is $C _3 H _7 OH$.
Reason$(R):$ The difference between the molecular masses of the two consecutive members of a homologous series is $144 .$
Assertion $(A)$ and the other labelled
Reason $(R)$. Select the correct answer to these questions from the codes $(a), (b), (c)$ and $(d)$ as given below:
Assertion $(A):$ In a homologous series of alcohols, the formula for the second member is $C _2 H _5 OH$ and the third member is $C _3 H _7 OH$.
Reason$(R):$ The difference between the molecular masses of the two consecutive members of a homologous series is $144 .$
- ABoth $A$ and $R$ are true, and $R$ is correct explanation of the assertion.
- BBoth $A$ and $R$ are true, but $R$ is not the correct explanation of the assertion.
- ✓$A$ is true, but $R$ is false.
- D$A$ is false, but $R$ is true.
Answer: C.
View full solution →The following questions, a statement of Assertion is given by the corresponding statement of Reason. Of the statements, mark the correct answer as.
Assertion Alcohol cannot be used as an additive in petrol.
Reason Alcohol give rise to $CO$ and $H_2O$ when burnt in sufficient air.
Assertion Alcohol cannot be used as an additive in petrol.
Reason Alcohol give rise to $CO$ and $H_2O$ when burnt in sufficient air.
- AIf both Assertion and Reason are true and Reason is the correct explanation of Assertion.
- BIf both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
- CIf Assertion is true, but Reason is false.
- ✓If Assertion is false, but Reason is true.
Answer: D.
View full solution →For question two statements are given $-$ one labelled Assertion $(A)$ and the other labelled Reason $(R).$ Select the correct answer to these questions from the codes $\ce{(a), (b), (c)}$ and $(d)$ as given below :
Assertion : Carbon and its compounds can be used as fuels.
Reason : They are highly inflammable and have high calorific value.
Assertion : Carbon and its compounds can be used as fuels.
Reason : They are highly inflammable and have high calorific value.
- ✓Both $A$ and $R$ are true, and $R$ is correct explanation of the assertion.
- BBoth $A$ and $R$ are true, but $R$ is not the correct explanation of the assertion.
- C$A$ is true, but $R$ is false.
- D$A$ is false, but $R$ is true.
Answer: A.
View full solution →For question two statements are given $-$ one labelled Assertion $(A)$ and the other labelled Reason $(R).$ Select the correct answer to these questions from the codes $\ce{(a), (b), (c)}$ and $(d)$ as given below : Assertion : Diamond is the hardest natural known substance.
Reason : Diamond is used for cutting marble, granite and glass.
Reason : Diamond is used for cutting marble, granite and glass.
- ABoth $A$ and $R$ are true, and $R$ is correct explanation of the assertion.
- ✓Both $A$ and $R$ are true, but $R$ is not the correct explanation of the assertion.
- C$A$ is true, but $R$ is false.
- D$A$ is false, but $R$ is true.
Answer: B.
View full solution →Two statements are given - one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below:
Reason(R): When esters react with sodium hydroxide an alcohol and sodium salt of carboxylic acid are obtained.
- Both A and Rare true and R is correct explanation of the Assertion.
- Both A and R are true but R is not the correct explanation of the Assertion.
- A is true but R is false.
- A is false but R is true.
Reason(R): When esters react with sodium hydroxide an alcohol and sodium salt of carboxylic acid are obtained.
Two statements are given - one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below:
Reason(R): The difference between the molecular masses of the two consecutive members of a homologous series is 144.
- Both A and Rare true and R is the correct explanation of the Assertion.
- Both A and R are true but R is not the correct explanation of the Assertion.
- A is true but R is false.
- A is false but R is true.
Reason(R): The difference between the molecular masses of the two consecutive members of a homologous series is 144.
The following questions, a statement of Assertion is given by the corresponding statement of Reason. Of the statements, mark the correct answer as.
Reason Diamond has high refractive index.
- If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
- If both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
- If Assertion is true, but Reason is false.
- If Assertion is false, but Reason is true.
Reason Diamond has high refractive index.
The following questions, a statement of Assertion is given by the corresponding statement of Reason. Of the statements, mark the correct answer as.
Reason Alcohol give rise to CO and H2O when burnt in sufficient air.
- If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
- If both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
- If Assertion is true, but Reason is false.
- If Assertion is false, but Reason is true.
Reason Alcohol give rise to CO and H2O when burnt in sufficient air.
For question two statements are given- one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below:
Reason: All the valencies of carbon atom are satisfied by single covalent bonds.
- Both A and R are true, and R is correct explanation of the assertion.
- Both A and R are true, but R is not the correct explanation of the assertion.
- A is true, but R is false.
- A is false, but R is true.
Reason: All the valencies of carbon atom are satisfied by single covalent bonds.
The sodium salt of a long chain fatty acid is called ___________.
The IUPAC name of ethylene is _______.
Plant shoot grows upward in response to __________.
The main constituent of marsh gas is _____.
The property of carbon atoms to form long chains in compounds is called _______.
The sodium salt of a long chain fatty acid is called ___________.
The property of carbon atoms to form long chains in compounds is called _______.
The process of burning of a hydrocarbon in the presence of air to give CO2, H2O, heat and light is known as ___________.
The organic acid present in vinegar is ___________.
The next homologue of C2H5OH is _________.
State whether the following statement is true or false:
The minimum number of carbon atoms in a ketone molecule is two.
The minimum number of carbon atoms in a ketone molecule is two.
Ethanol turns blue litmus red. [True/ False]
State whether the following statement is true or false:Diamond and graphite are the covalent compounds of carbon element (C).
The IUPAC name of $CH_3-CH_2-CH_2-CH_3$ is pentane. [True/ False]
View full solution →Carbon and its compounds are used as fuels because they burn in air releasing a lot of heat energy. [True/ False]
The solid and liquid fuels which do not vaporise on heating, burn without producing a flame. [True/ False]
The IUPAC name of CH3-CH2-CH2-CH3 is pentane. [True/ False]
State whether the following statement is true or false:
The minimum number of carbon atoms in a ketone molecule is two.
The minimum number of carbon atoms in a ketone molecule is two.
State whether the following statement is true or false:
Diamond and graphite are the covalent compounds of carbon element (C).
Ethanol turns blue litmus red. [True/ False]
Write the molecular formula of the $2^{\text {nd }}$ and $3^{\text {rd }}$ member of the homologous series where the first member is ethyne.
View full solution →Write the name and structure of an aldehyde with four carbon atoms in its molecule.
Write the number of covalent bonds in the molecule of butane, $C _4 H _{10}$
View full solution → Write the molecular formula of the $2^{\text {nd }}$ and $3^{\text {rd }}$ member of the homologous series whose first member is ethene.
View full solution →Write the name and structure of an alcohol with four carbon atoms in its molecule.
Which of the following hydrocarbons undergo addition reactions:
C2H6, C3H8, C3H6, C2H2 and CH4.
C2H6, C3H8, C3H6, C2H2 and CH4.
What is hydrogenation? What is its industrial application?
What change will you observe if you test soap with litmus paper (red and blue)?
Write the molecular formula of the 2nd and 3rd member of the homologous series where the first member is ethyne.
Write the name and structure of an aldehyde with four carbon atoms in its molecule.
Mention the essential material (chemicals) to prepare soap in the laboratory. Describe in brief the test of determining the nature (acidic/alkaline) of the reaction mixture of saponification reaction.
When you add sodium hydrogen carbonate to acetic acid in a test tube, a gas liberates immediately with a brisk effervescence. Name this gas. Describe the method of testing this gas.
A student adds a spoon full of powdered sodium hydrogen carbonate to a flask containing ethanol acid. List two main observations, he must note in his note book, about the reaction that takes place. Also write chemical equation for the reaction.
Write the name and molecular formula of an organic compound having its name suffixed with '- ol' and having two carbon atoms in the molecule. With the help of a balanced chemical equation indicate what happens when it is heated with excess of conc. $H _2 SO _4$.
View full solution →What happens when wood is burnt in a limited supply of oxygen? Name the residue left behind after the reaction and state two advantages of using this residue as a fuel over wood.
Why are carbon and its compounds used as fuels for most applications?
Give a test that can be used to differentiate chemically between butter and cooking oil.###Give a test that can be used to differentiate between saturated and unsaturated hydrocarbons.
Explain the formation of scum when hard water is treated with soap.
Mention the essential material (chemicals) to prepare soap in the laboratory. Describe in brief the test of determining the nature (acidic/alkaline) of the reaction mixture of saponification reaction.
When you add sodium hydrogen carbonate to acetic acid in a test tube, a gas liberates immediately with a brisk effervescence. Name this gas. Describe the method of testing this gas.
Write the structural formula of ethanol. What happens when it is heated with excess of conc. $H _2 SO _4$ at 443 K ? Write the chemical equation for the reaction stating the role of conc. $H _2 SO _4$ in this reaction.
View full solution →List two tests for experimentally distinguishing between an alcohol and a carboxylic acid and describe how these tests are performed.
Write the name and general formula of a chain of hydrocarbons in which an addition reaction with hydrogen is possible. State the essential condition for an addition reaction. Stating this condition, write a chemical equation giving the name of the reactant and the product of the reaction.
Define the term ‘structural isomerism’. Explain why propane cannot exhibit this property. Draw the structures of possible isomers of butane, $C _4 H _{10}$.
View full solution →A carboxylic acid (molecular formula $C _2 H _4 O _2$ ) reacts with an alcohol in the presence of an acid catalyst to form a compound ' X '. The alcohol on oxidation with alkaline $KMnO _4$ followed by acidification gives the same carboxylic acid $C _2 H _4 O _2$. Write the name and structure of,
i. Carboxylic acid.
ii. Alcohol.
iii. The compound ' $X$ '.
View full solution →i. Carboxylic acid.
ii. Alcohol.
iii. The compound ' $X$ '.
Why does micelle formation take place when soap is added to water? Will a micelle be formed in other solvents such as ethanol also?
How can ethanol and ethanoic acid be differentiated on the basis of their physical and chemical properties?
What is a homologous series? Explain with an example.
Draw the electron dot structures for:
- Ethanoic acid.
- H2S.
- Propanone.
- F2.
Explain the nature of the covalent bond using the bond formation in CH3Cl.
Raina while doing certain reactions observed that heating of substance ' $X$ ' with vinegar like smell with a substance ' $Y$ ' (which is used as an industrial solvent) in presence of conc. Sulphuric acid on a water bath gives a sweet-smelling liquid ' $Z$ ' having molecular formula $C _4 H _8 O _2$. When heated with caustic soda $( NaOH )$, ' $Z$ ' gives back the sodium salt of and the compound ' $Y$ '
Identify ' $X$ ', ' $Y$ ', and ' $Z$ '. Illustrate the changes with the help of suitable chemical equations.
View full solution →Identify ' $X$ ', ' $Y$ ', and ' $Z$ '. Illustrate the changes with the help of suitable chemical equations.
a) Rehmat classified the reaction between Methane and Chlorine in presence of sunlight as a substitution reaction. Support Rehmat's view with suitable justification and illustrate the reaction with the help of a balanced chemical equation.
b) Chlorine gas was prepared using electrolysis of brine solution. Write the chemical equation to represent the change. Identify the other products formed in the process and give one application of each.
b) Chlorine gas was prepared using electrolysis of brine solution. Write the chemical equation to represent the change. Identify the other products formed in the process and give one application of each.
Why are certain compounds called hydrocarbons? Write the general formula for homologous series of alkanes, alkenes and alkynes and also draw the structure of the first member of each series. Write the name of the reaction that converts alkenes into alkanes and also write a chemical equation to show the necessary conditions for the reaction to occur.
Both soap and detergent are some type of salts. What is the difference between them? Describe in brief the cleansing action of soap. Why do soaps not form lather in hard water? List two problems that arise due to the use of detergents instead of soaps.
List two reasons for carbon forming a large number of compounds. Name the type of bonding found in most of its compounds. Why does carbon form compounds mainly by this kind of bonding?
Give reason why the carbon compounds:
Give reason why the carbon compounds:
- Generally have low melting and boiling points.
- Do not conduct electricity in molten state.
Read the following and answer any three questions from (i) to (iv).
Two allotropic forms of carbon which are crystalline in nature, are diamond and graphite. They differ physically but chemically they are similar. Diamond is the hardest crystalline form of carbon. In diamond, each carbon atom is linked to four other carbon atoms by covalent bonds. In graphite, each carbon atom is linked to three other carbon atoms by covalent bond. Graphite is relatively soft and greasy. It is also a good conductor of electricity. The C-C bond length in graphite is 141.5 pm while in diamond it is 154 pm.
- Which are a good conductor of heat and electricity?
- Why Graphite is a good conductor of electricity?
- A) Which types of binding forces is present in the structure of diamond?
B) Why Diamond is not a good conductor of electricity?
OR - Write two allotropic forms of carbon in brief.
Read the following and answer any three questions from (i) to (iv).The table given below shows six organic compounds A, B, C, D, E and F having different molecular formula:
Organic compound | Molecular formula |
A | C7H16 |
B | C8H16 |
C | C4H6 |
D | C6H10 |
E | C5H10 |
F | C9H20 |
- Write compounds belonging to the same homologous series?
- Write the member of the same homologous series as E with the help of the table?
- Identify Compound B from a given table.
OR - A) Write the general formula of Compound (F).
B) Explain Different between organic and molecular compounds.
Read the following and answer any three questions from (i) to (iv).
The compounds which have the same molecular formula but differ from each other in physical or chemical properties are called isomers and the phenomenon is called isomerism. When the isomerism is due to difference in the arrangement of atoms within the molecule, without any reference to space, the phenomenon is called structural isomerism. ln other words, structural isomers are compounds that have the same molecular formula but different structural formulas, i.e., they are different in the order in which different atoms are linked. In these compounds, carbon atoms can be linked together in the form of straight chains, branched chains or even rings.
i. Which sets of compounds have same molecular formula?
ii. How many an organic compound is their, In order to form branching?
iii. what is an isomers?
OR
A)Name three different types of chain?
B)The number of isomers of pentane are?
Read the following and answer any three questions from (i) to (iv).
View full solution →As neutral atom carbon has electronic configuration $\text{K}\ \ \ \text{L}\\2\ \ \ \ 4$ To gain inert gas configuration carbon can either donate 4 valence electrons (helium gas configuration) or gain 4 electrons (neon gas configuration), but it cannot do so. To acquire inert gas configuration carbon can only share its 4 valence electrons with other atoms forming covalent bonds. A covalent bond can be defined as a chemical bond formed between two atoms by mutual sharing of valence electrons so that each atom acquires the stable electronic configuration of the nearest noble gas. The concept of covalent bonds was given by Langmuir and Lewis to explain bonding in non-ionic compounds. The covalent bonds are of three types. If each atom contributes one electron, the covalent bond formed is called a single covalent bond and is represented by a single line (-) and if each atom contributes two electrons, the covalent bond formed is called a double bond and is represented by a double line (=) and if each atom contributes three electrons, the covalent bond formed is called a triple bond and is represented by a triple line $(\equiv).$
- Which compounds do not contain a double bond?
- Write compounds which contains a triple bond?
- Which molecules has all its atoms joined together by double covalent bond? Give two example.
OR - A) Langmuir and Lewis has given which concept?
B) Explain three types of covalent bonds?
Read the following and answer any three questions from (i) to (iv).
A series of organic compounds having same functional group, with similar or almost identical chemical characteristics in which all the members can be represented by the same general formula and the two consecutive members of the series differ by-CH2 group or 14 mass unit in their molecular formulae is called a homologous series. For example, all the members of alcohol family can be represented by the general formula, CnH2n+1OH where, n may have the values 1, 2, 3, etc. The various members of a particular homologous series are called homologous. The physical properties such as density, melting point, boiling point, solubility, etc. of the members of a homologous series show almost regular variation in ascending or descending the series.
- What are the characteristic of members of a homologous series?
- Write the general formula of all the members of homologous series of alkynes.
- What is a homologous series? Write example.
OR - What are the 3 types of homologous series and define each.
Read the following and answer any three questions from (i) to (iv). A series of organic compounds having same functional group, with similar or almost identical chemical characteristics in which all the members can be represented by the same general formula and the two consecutive members of the series differ by- $CH _2$ group or 14 mass unit in their molecular formulae is called a homologous series. For example, all the members of alcohol family can be represented by the general formula, $C _n H _{2 n+1} OH$ where, $n$ may have the values $1,2,3$, etc. The various members of a particular homologous series are called homologous. The physical properties such as density, melting point, boiling point, solubility, etc. of the members of a homologous series show almost regular variation in ascending or descending the series.
i. What are the characteristic of members of a homologous series?
ii. Write the general formula of all the members of homologous series of alkynes.
iii. What is a homologous series? Write example.
OR
iv. What are the 3 types of homologous series and define each.
View full solution →i. What are the characteristic of members of a homologous series?
ii. Write the general formula of all the members of homologous series of alkynes.
iii. What is a homologous series? Write example.
OR
iv. What are the 3 types of homologous series and define each.
Read the following and answer any three questions from (i) to (iv).Two allotropic forms of carbon which are crystalline in nature, are diamond and graphite. They differ physically but chemically they are similar. Diamond is the hardest crystalline form of carbon. In diamond, each carbon atom is linked to four other carbon atoms by covalent bonds. In graphite, each carbon atom is linked to three other carbon atoms by covalent bond. Graphite is relatively soft and greasy. It is also a good conductor of electricity. The C-C bond length in graphite is 141.5 pm while in diamond it is 154 pm.
- Which are a good conductor of heat and electricity?
- Why Graphite is a good conductor of electricity?
- A) Which types of binding forces is present in the structure of diamond?
B) Why Diamond is not a good conductor of electricity?
OR - Write two allotropic forms of carbon in brief.
Read the following and answer any three questions from (i) to (iv).As neutral atom carbon has electronic configuration $\text{K}\ \ \ \text{L}\\2\ \ \ \ 4$ To gain inert gas configuration carbon can either donate 4 valence electrons (helium gas configuration) or gain 4 electrons (neon gas configuration), but it cannot do so. To acquire inert gas configuration carbon can only share its 4 valence electrons with other atoms forming covalent bonds. A covalent bond can be defined as a chemical bond formed between two atoms by mutual sharing of valence electrons so that each atom acquires the stable electronic configuration of the nearest noble gas. The concept of covalent bonds was given by Langmuir and Lewis to explain bonding in non-ionic compounds. The covalent bonds are of three types. If each atom contributes one electron, the covalent bond formed is called a single covalent bond and is represented by a single line (-) and if each atom contributes two electrons, the covalent bond formed is called a double bond and is represented by a double line (=) and if each atom contributes three electrons, the covalent bond formed is called a triple bond and is represented by a triple line $(\equiv).$
View full solution →- Which compounds do not contain a double bond?
- Write compounds which contains a triple bond?
- Which molecules has all its atoms joined together by double covalent bond? Give two example.
OR - A) Langmuir and Lewis has given which concept?
B) Explain three types of covalent bonds?
Read the following and answer any three questions from (i) to (iv).The compounds which have the same molecular formula but differ from each other in physical or chemical properties are called isomers and the phenomenon is called isomerism. When the isomerism is due to difference in the arrangement of atoms within the molecule, without any reference to space, the phenomenon is called structural isomerism. ln other words, structural isomers are compounds that have the same molecular formula but different structural formulas, i.e., they are different in the order in which different atoms are linked. In these compounds, carbon atoms can be linked together in the form of straight chains, branched chains or even rings.
i. Which sets of compounds have same molecular formula?
ii. How many an organic compound is their, In order to form branching?
iii. what is an isomers?
OR
A)Name three different types of chain?
B)The number of isomers of pentane are?
i. Which sets of compounds have same molecular formula?
ii. How many an organic compound is their, In order to form branching?
iii. what is an isomers?
OR
A)Name three different types of chain?
B)The number of isomers of pentane are?
Read the following and answer any three questions from (i) to (iv).The table given below shows six organic compounds A, B, C, D, E and F having different molecular formula:
|
Organic compound
|
Molecular formula
|
|
A
|
$C _7 H _{16}$ |
|
B
|
$C _8 H _{16}$ |
|
C
|
$C _4 H _6$ |
|
D
|
$C _6 H _{10}$ |
|
E
|
$C _5 H _{10}$ |
|
F
|
$C _9 H _{20}$ |
- Write compounds belonging to the same homologous series?
- Write the member of the same homologous series as E with the help of the table?
- Identify Compound B from a given table.
OR
- A) Write the general formula of Compound (F).
B) Explain Different between organic and molecular compounds.
- A
Raina while doing certain reactions observed that heating of substance ' $X$ ' with vinegar like smell with a substance ' $Y$ ' (which is used as an industrial solvent) in presence of conc. Sulphuric acid on a water bath gives a sweet-smelling liquid ' $Z$ ' having molecular formula $C _4 H _8 O _2$. When heated with caustic soda $( NaOH )$, ' $Z$ ' gives back the sodium salt of and the compound ' $Y$ '
Identify ' $X$ ', ' $Y$ ', and ' $Z$ '. Illustrate the changes with the help of suitable chemical equations.
View full solution →Identify ' $X$ ', ' $Y$ ', and ' $Z$ '. Illustrate the changes with the help of suitable chemical equations.
a) Rehmat classified the reaction between Methane and Chlorine in presence of sunlight as a substitution reaction. Support Rehmat's view with suitable justification and illustrate the reaction with the help of a balanced chemical equation.
b) Chlorine gas was prepared using electrolysis of brine solution. Write the chemical equation to represent the change. Identify the other products formed in the process and give one application of each.
b) Chlorine gas was prepared using electrolysis of brine solution. Write the chemical equation to represent the change. Identify the other products formed in the process and give one application of each.
Why are certain compounds called hydrocarbons? Write the general formula for homologous series of alkanes, alkenes and alkynes and also draw the structure of the first member of each series. Write the name of the reaction that converts alkenes into alkanes and also write a chemical equation to show the necessary conditions for the reaction to occur.
Both soap and detergent are some type of salts. What is the difference between them? Describe in brief the cleansing action of soap. Why do soaps not form lather in hard water? List two problems that arise due to the use of detergents instead of soaps.
List two reasons for carbon forming a large number of compounds. Name the type of bonding found in most of its compounds. Why does carbon form compounds mainly by this kind of bonding?
Give reason why the carbon compounds:
Give reason why the carbon compounds:
- Generally have low melting and boiling points.
- Do not conduct electricity in molten state.
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