11.6 Carboxylic Acid - ICSE STD 10 Chemistry Questions

Q 1MCQ1 Mark

The $\ce{IUPAC}$ name of acetylene is $.......$

A
Propane
B
Propyne
C
Ethane
✓
ethyne

Answer: D.

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Q 2MCQ1 Mark

Identify this statement that is incorrect aboutalkanes.

A
They are hydrocarbons
B
There is a single covalent bond between carbon and hydrogen
✓
They can undergo both substitution as well as addition reactions
D
On complete combustion they produce carbon dioxide and water

Answer: C.

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Q 3MCQ1 Mark

The product formed when ethane gas reacts with water in the presence of sulphuric acid is __________ .

A
ethanal
✓
ethanol
C
ethanoic
D
dehydration

Answer: B.

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Q 4MCQ1 Mark

Ethanoic acid reacts with ethanol in presence of concentrated $H _2 SO _4$so as to form a compound and water. The chemical reaction which takes place is called ______ .

A
dehydration
B
hydrogenation
✓
esterification
D
acetic acid

Answer: C.

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Q 5MCQ1 Mark

When acetaldehyde us oxidized with acidified potassium dichromate, it forms _________ .

A
ester
B
ethanol
✓
acetic acid
D
iron

Answer: C.

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Q 6[2 Mark Question Answer]2 Marks

Methane does not undergo addition reaction, but ethane does.

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Q 7[2 Mark Question Answer]2 Marks

Ethyl alcohol to Ethane.

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Q 8[2 Mark Question Answer]2 Marks

Methane is the first member of alkane, when it is treated with excess of chlorine in the presence of diffused forms carbon tetrachloride. Draw the appropriate structural formula of carbon tetrachloride and state the type of bond present is it.

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Q 9[2 Mark Question Answer]2 Marks

Why is pure acetic acid also known as glacial acetic acid?

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Q 10[2 Mark Question Answer]2 Marks

Write the general formula for a saturated hydrocarbon and give one example of a saturated hydrocarbon with its structural formula.

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Q 11[3 Mark Question Answer]3 Marks

Using appropriate catalysts, ethane can be oxidized to an alcohol, an aldehyde and an acid. name the alcohol, aldehyde and acid formed when ethane is oxidized.

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Q 12[3 Mark Question Answer]3 Marks

Distinguish between the saturated hydrocarbon ethane and the unsaturated hydrocarbon ethene by drawing their structural formulae.

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Q 13[3 Mark Question Answer]3 Marks

Copy and complete the following table which relates to three homologus series of hydrocarbons:

General formula	$C_nH_{2n}$	$C_nH_{2n-2}$	$C_nH_{2n+2}$
IUPAC name of the homologus series
Characteristic bond type			Single bond
IUPAC name of the first member of the series
Type of reaction with chlorine		Addition