Note: Assertion and Reason Type Questions (Q. 12 to 16)
(a) Both Assertion and reason are correct statements, and reason is the correct explanation of the
assertion
(b) Both assertion and reason are correct statements, but reason is not the correct explanation of
the assertion
(c) Assertion is correct, but reason is wrong statement.
(d) Assertion is wrong, but reason is correct statement.
12 Assertion: Aromatic aldehydes and formaldehyde undergo Cannizzaro reaction.
Reason: Aromatic aldehydes are almost as reactive as formaldehyde.
[1]
13. Assertion: Aldehydes and Ketones both react with Tollen's reagent to form silver mirror.
Reason: Both aldehydes and ketones contain a carbonyl group.
[11
14. Assertion: Compounds containing -CHO group are easily oxidized to corresponding
carboxylic acids.
Reason: Carboxylic acids can be reduced to alcohols by treatment with LiAIH..
[1]
15. Assertion: Acylation of amines gives a monosubstituted product whereas alkylation of amines
gives polysubstituted product.
Reason: Acyl group sterically hinders the approach of further acyl groups.
[1]
16. Assertion: Hoffmann's bromamide reaction is given by primary amides,
Reason: Primary amines are less basic than secondary amines.
[1]
Section-B
17. Which alkyl halide from the following pair is
(i) Chiral and (ii) undergoes S 2 reaction faster?
M
(b)
Y
Br
Answers
Note: Assertion and Reason Type Questions (Q. 12 to 16)
(a) Both Assertion and reason are correct statements, and reason is the correct explanation of the
assertion
(b) Both assertion and reason are correct statements, but reason is not the correct explanation of
the assertion
(c) Assertion is correct, but reason is wrong statement.
(d) Assertion is wrong, but reason is correct statement.
12 Assertion: Aromatic aldehydes and formaldehyde undergo Cannizzaro reaction.
Reason: Aromatic aldehydes are almost as reactive as formaldehyde.
[1]
13. Assertion: Aldehydes and Ketones both react with Tollen's reagent to form silver mirror.
Reason: Both aldehydes and ketones contain a carbonyl group.
[11
14. Assertion: Compounds containing -CHO group are easily oxidized to corresponding
carboxylic acids.
Reason: Carboxylic acids can be reduced to alcohols by treatment with LiAIH..
[1]
15. Assertion: Acylation of amines gives a monosubstituted product whereas alkylation of amines
gives polysubstituted product.
Reason: Acyl group sterically hinders the approach of further acyl groups.
[1]
16. Assertion: Hoffmann's bromamide reaction is given by primary amides,
Reason: Primary amines are less basic than secondary amines.
[1]
Section-B
17. Which alkyl halide from the following pair is
(i) Chiral and (ii) undergoes S 2 reaction faster?
M
(b)
Y
Br