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Enantiomers

Schemes 1 and...

Question

Schemes 1 and 2 describe sequential transformation of alkynes M and N. Consider only the major products formed in each step for both schemes.

A

It gives a positive Tollen’s test and is a functional isomer of X

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B

It gives a positive Tollen’s test and is a geometrical isomer of X

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C

It gives a positive iodoform test and is a functional isomer of X

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D

It gives a positive iodoform test and is a geometrical isomer of X

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Solution

The correct option is C It gives a positive iodoform test and is a functional isomer of X
This problem can be solved by using the concept of iodoform test and functional isomerism.
Iodoform test - The compound containing - $C O C H_{3}$
or $- C H (O H)$ group will undergo iodoform test.

Thus, X and Y are functional isomers of each other and Y gives iodoform test due to the presence of $C H_{3} C O$ group as indicated. Hence, correct choice is (c).
The correct statement with respect to product Y is

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Similar questions

(A), (B)

(C)

are three non-cyclic functional isomers of a carbonyl compound with molecular formula

C_{4} H_{8} O

(A)

(C)

give positive Tollen's test whereas isomer

(B)

does not give Tollen's test but gives positive Iodoform test. Isomers

(A)

(B)

on reduction with

Z n (H g) / c o n c

H C l

give the same product

(D)

Write the structures of

(A), (B), (C)

(D)

.

Q. (A),(B) and (C) are three non-cyclic functional isomers of a carbonyl compound with molecular formula

C_{4} H_{8} O .

Isomers (A) and (C) give positive Tollens' test whereas isomer (B) does not give Tollens' test but gives positive Iodoform test. Isomers (A) and (B) on reduction with Zn(Hg)/conc. HCI give the same product (D).

(a) Write the structures of (A),(B),(C) and (B).

(b) Out of (A), (B) and (C) isomers, which one is least reactive towards addition of HCN?

Q. Given are the isomers

C_{8} H_{8} O_{2}

.
Which isomer gives positive iodoform test?

Q. A carbonyl compound does not reduce Tollen's reagent or Fehling's solution but gives a positive iodoform test. It forms a cyanohydrin with

H C N

. The compound is:

Q. A carbonyl compound gives a positive iodoform test but does not reduce Tollen's reagent or Fehling's solution. It forms a cyanohydrin with HCN. The compound is:

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