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Q.

How many of the following give not only the positive haloform test but also Tollen’s test? 

(A) CH3−CO−CH3              (B) C6H5−CH2−CHO
(C) CH3−CHO                       (D) C6H5−CHO
(E) C6H5−CO−CH3

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a

2

b

1

c

3

d

4

answer is A.

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Detailed Solution

Haloform test due to Question Image group and Aliphatic & aromatic aldehydes give Tollen’s test

(1) Cpd-C gives both tests
(2) Cpds-B & D give T.T but not haloform 

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