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Coordination Isomerism

HCN and HNC a...

Question

HCN and HNC are _______________ isomers

A

Functional

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B

Tautomers

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C

Chain

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D

Position

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Solution

The correct option is B
Tautomers

Cyanides and isocyanides form tautomers of diad system where H shifts from $1^{s t}$ atom to second bonded atom.

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H C N

H N C

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?

a

b

are positive integers,

f

is a function defined for positive numbers and attains only positive values such that

f (y f (x)) = x^{a} y^{b}

C H_{3} C H_{2} C H_{2} O H a n d C H_{3} C H_{2} O C H_{3}

C H_{3} C O O C_{2} H_{5} a n d C_{2} H_{5} C O O C H_{3}

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