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Formation of Imines

Compound X ...

Question

Compound $(X)$ with molecular formula $C_{3} H_{8} O$ is treated with acidified potassium dichromate to form a product $(Y)$ with molecular formula $C_{3} H_{6} O$ . $(Y)$ does not form a shining silver mirror on warming with ammoniacal $A g N O_{3}$ . $(Y)$ when treated with an aqueous solution of $N H_{2} C O N H N H_{2}$ , $H C l$ and sodium acetate, gives a product $(Z)$ . The structure of $(Z)$ is:

A

C H_{3} C H_{2} C H = N N H C O N H_{2}

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B

(C H_{3})_{2} C = N N H C O N H_{2}

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C

(C H_{3})_{2} C = N C O N H N H_{2}

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D

C H_{3} C H_{2} C H = N C O N H N H_{2}

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Solution

The correct option is A $(C H_{3})_{2} C = N N H C O N H_{2}$
Higher the basicity, lower is the $p K_{b}$ value. Since $N H_{3}$ is the weakest base, hence it has highest $p K_{b}$ value.

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Similar questions

^{'} A^{'}

(molecular formula

C_{3} H_{8} O

) is treated with acidified potassium dichromate to form a product

^{'} B^{'}

(molecular formula

C_{3} H_{6} O

^{'} B^{'}

forms a shining silver mirror on warming with ammoniacal silver nitrate.

^{'} B^{'}

when treated with an aqueous solution of

N H_{2} C O N H N H_{2}, H C l

and sodium acetate gives a product

^{'} C^{'}

. Identify the structure of

^{'} C^{'}

.

(A)

(molecular formula

C_{3} H_{8} O

) is treated with acidified potassium dichromate to form a product B (molecular formula

C_{3} H_{6} O

). 'B' forms a shining silver mirror on warming with ammoniacal silver nirate. 'B' when treated with an aqueous solution of

H_{2} N C O N H N H_{2} \cdot H C l

and sodium acetate gives a product 'C'. Identify the structure of 'C':

A

' (molecular formula

C_{3} H_{8} O

is treated with acidified potassium dichromate to form a product '

B

' (molecular formula

C_{3} H_{6} O

B

' forms a shining silver mirror on warming with ammoniacal silver nitrate. '

B

' when treated with an aqueous solution of

H_{2} N C O N H N H_{2}

and sodium acetate gives a product '

C

'. Identify the structure of '

C

Q. An excess of compound 'A' (molecular formula C₃H₈O) is treated with acidified potassium dichromate to form a product 'B' (molecular formula C₃H₆O). 'B' forms a shining silver mirror on warming with ammoniacal silver nitrate. 'B' when treated with an aqueous solution of H₂NCONHNH_2,HCl and sodium acetate, it gives a product 'C'. Identify the structure of 'C'

Compound (X) ,C₃H₈O on treatment with acidified potassium dichromate gives compound (Y), C₃H₆O which forms silver mirror with tollen's reagent and gives compound (Z) on reaction with semicarbazide. The compound (Z) is

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