Write the corect answer $A$ noble gas.
$A:$ Gunpowder
$B:$ Iodine
$C:$ Boron
$D:$ Helium
$E:$ Bromine
View full solution →$A:$ Gunpowder
$B:$ Iodine
$C:$ Boron
$D:$ Helium
$E:$ Bromine
Question types
Elements, Compounds and Mixtures question types
29 questions across 6 question groups — pick any mix to generate a CHEMISTRY paper with step-by-step answer keys.
29
Questions
6
Question groups
5
Question types
01
[1 Mark Question Answer]
5 Q→02[2 Mark Question Answer]
7 Q→03[3 Mark Question Answer]
4 Q→04[5 Mark Question Answer]
7 Q→05Fill in the blanks.
5 Q→06Match The Following.
1 Q→Sample Questions
Elements, Compounds and Mixtures questions
One sample from each question group in this chapter. Select any group above to see the full set with answer keys.
Write the corect answer A mixture consisting of elements a compound.
$A:$ Gunpowder
$B:$ Iodine
$C:$ Boron
$D:$ Helium
$E:$ Bromine
View full solution →$A:$ Gunpowder
$B:$ Iodine
$C:$ Boron
$D:$ Helium
$E:$ Bromine
Write the corect answer A non$-$metal which is lustrous.
$A:$ Gunpowder
$B:$ Iodine
$C:$ Boron
$D:$ Helium
$E:$ Bromine
View full solution →$A:$ Gunpowder
$B:$ Iodine
$C:$ Boron
$D:$ Helium
$E:$ Bromine
Write the corect answer A metalloid.
$A:$ Gunpowder
$B:$ Iodine
$C:$ Boron
$D:$ Helium
$E:$ Bromine
View full solution →$A:$ Gunpowder
$B:$ Iodine
$C:$ Boron
$D:$ Helium
$E:$ Bromine
Write the corect answer A diatomic molecule.
$A:$ Gunpowder
$B:$ Iodine
$C:$ Boron
$D:$ Helium
$E:$ Bromine
View full solution →$A:$ Gunpowder
$B:$ Iodine
$C:$ Boron
$D:$ Helium
$E:$ Bromine
Zinc is considered an element, while zinc sulphide is considered a compound.
Brass $\&$ bronze are examples of mixtures, while copper sulphate $\&$ lead nitrate are examples of compounds.
View full solution →The filter paper made into a cone & placed in a funnel for filtering out the solid particles in a solid$-$liquid mixture, should be moistened before placing.
View full solution →Centrifugation can be used for separating an insoluble heavier solid, present in an $–$ insoluble solid$-$liquid mixture.
View full solution →Components in a mixture can be separated by physical methods only.
Compare the properties of iron $\ce{[II]}$ sulphide with iron $-$ sulphur mixture, considering iron $\ce{[II]}$ sulphide as a compound particles of iron sulphur mixed together as an example of a mixture.
View full solution →Define the term 'compound'. In the compound carbon dioxide $-$ the elements carbon $\&$ oxygen are combined in a fixed ratio. Explain.
View full solution →With reference to elements $–$ define the term ‘molecule’. Give two examples each of a monoatomic, diatomic $\&$ polyatomic molecule.
View full solution →Define the terms elements, compounds $\&$ mixtures with a view to show their basic difference.
View full solution →The diagram represents fractional distillation for separation mixtures. Answer the following
$1.$ Can two immiscible liquids be separated by this process.
$2.$ Separation of liquids by this process is based on which physical property?
$3.$ If methyl alcohol $\&$ water are to be separated, which liquid would remain in flask ‘$X$’ after condensation.
$4.$ Give a reason for the above answer.
$5.$ State the purpose of the fractionating column in the apparatus.
View full solution →$1.$ Can two immiscible liquids be separated by this process.
$2.$ Separation of liquids by this process is based on which physical property?
$3.$ If methyl alcohol $\&$ water are to be separated, which liquid would remain in flask ‘$X$’ after condensation.
$4.$ Give a reason for the above answer.
$5.$ State the purpose of the fractionating column in the apparatus.
Explain with diagrams the process used to $-$ separate the following substances from the given mixtures.
$(a)$ Ammonium chloride from a mixture of $-$ ammonium chloride $\&$ potassium chloride.
$(b)$ Iron from a mixture of $-$ iron $\&$ copper
$(c)$ Sulphur from a mixture of $-$ sulphur $\&$ copper.
$(d)$ Potassium nitrate from a mixture of $-$ potassium nitrate $\&$ potassium chlorate.
$(e)$ Lead carbonate [insoluble] from a mixture of $-$ lead carbonate $\&$ water.
$(f)$ Lead nitrate [soluble] from a mixture of $-$ lead nitrate $\&$ water Le. lead nitrate solution.
$(g)$ Carbon tetrachloride from a mixture of $-$ carbon tetrachloride $[$heavier component$]\ \&$ water.
$(h)$ Benzene from a mixture of $-$ benezene $\left[\right. b.p. \left.80^{\circ} C \right]$ toluene $\left[ b . p . \ 110^{\circ} CJ\right.]$.
$(i)$ Different dyes $-$ in their liquid constituent ink.
View full solution →$(a)$ Ammonium chloride from a mixture of $-$ ammonium chloride $\&$ potassium chloride.
$(b)$ Iron from a mixture of $-$ iron $\&$ copper
$(c)$ Sulphur from a mixture of $-$ sulphur $\&$ copper.
$(d)$ Potassium nitrate from a mixture of $-$ potassium nitrate $\&$ potassium chlorate.
$(e)$ Lead carbonate [insoluble] from a mixture of $-$ lead carbonate $\&$ water.
$(f)$ Lead nitrate [soluble] from a mixture of $-$ lead nitrate $\&$ water Le. lead nitrate solution.
$(g)$ Carbon tetrachloride from a mixture of $-$ carbon tetrachloride $[$heavier component$]\ \&$ water.
$(h)$ Benzene from a mixture of $-$ benezene $\left[\right. b.p. \left.80^{\circ} C \right]$ toluene $\left[ b . p . \ 110^{\circ} CJ\right.]$.
$(i)$ Different dyes $-$ in their liquid constituent ink.
State any one method $–$ to separate the following mixtures$-$
$(a)$ Two solid mixtures one of which $–$ directly changes into vapour on heating.
$(b)$ Two solid mixtures one of which $–$ dissolves in a particular solvent and other does not
$(c)$ A solid-liquid mixture containing $–$ an insoluble solid in the liquid component
$(d)$ A solid-liquid mixture containing $–$ a soluble solid in the liquid component
$(e)$ A liquid-liquid mixture containing $–$ two immiscible liquids having different densities
$(f)$ A liquid-liquid mixture containing $–$ two miscible liquids having different boiling points.
$(g)$ A liquid-gas mixture containing $–$ a gas dissolved in a liquid component.
$(h)$ A gas-gas mixture containing $–$ two gases with different densities.
$(i)$ A mixture of different solid constituents $–$ in a liquid constituent.
View full solution →$(a)$ Two solid mixtures one of which $–$ directly changes into vapour on heating.
$(b)$ Two solid mixtures one of which $–$ dissolves in a particular solvent and other does not
$(c)$ A solid-liquid mixture containing $–$ an insoluble solid in the liquid component
$(d)$ A solid-liquid mixture containing $–$ a soluble solid in the liquid component
$(e)$ A liquid-liquid mixture containing $–$ two immiscible liquids having different densities
$(f)$ A liquid-liquid mixture containing $–$ two miscible liquids having different boiling points.
$(g)$ A liquid-gas mixture containing $–$ a gas dissolved in a liquid component.
$(h)$ A gas-gas mixture containing $–$ two gases with different densities.
$(i)$ A mixture of different solid constituents $–$ in a liquid constituent.
Explain the term ‘mixture’. Differentiate between homogenous $\&$ heterogenous mixtures. State why brass is considered as a homogenous mixture while a mixture of iron $\&$ sulphur – heterogenous. Give an example of two liquids which form $–$
$(a)$ homogenous
$(b)$ heterogenous $–$ mixtures.
View full solution →$(a)$ homogenous
$(b)$ heterogenous $–$ mixtures.
State five different characteristics of compounds. Give three differences between elements $\&$ compounds with relevant examples.
View full solution →An example of a monoatomic molecule is $………….. [$hydrogen$/$ helium$]$.
View full solution →Compounds are $……….. [$homogenous or heterogenous$/$always homogenous$]$ in nature.
View full solution →The reactive element from the two monoatomic elements is $……….. [$neon$/$silicon$]$.
View full solution →A soluble solid is separated from an insoluble solid by $………….. [$fractional crystallisation$/$solvent extraction$]$
View full solution →Dust in air is an example of $………….. [$heterogeneous $/$ homogenous$]$ mixture.
View full solution →| List $-I$ | List $-II$ |
| $1.$ Naphthalene from naphthalene $\&$ sodium chloride. | $A:$ Separating funnel |
| $2.$ Cream from milk. | $B:$ Sublimation |
| $3.$ Kerosene oil from kerosene | $C:$ Boiling oil $\&$ water. |
| $4.$ Lead nitrate from an aqueous solution of lead nitrate. | $D:$ Centrifugation |
| $E:$ Distillation |
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