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Byju's Answer

Standard XII

Biology

Tests for Carbohydrates

Compound X , ...

Question

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

CH₃CH₂CH = NNHCONH₂

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CH₃CH₂CH = NCONHNH₂

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(CH₃)₂C = N CONHNH₂

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(CH₃)₂C= NNHCONH₂

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Solution

The correct option is A
CH₃CH₂CH = NNHCONH₂

X = CH₃ - CH₂ - CH₂OH; Y = CH₃ - CH₂ - CHO

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Similar questions

Q. 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:

Q. A neutral compound 'X' of molecular formula C₂H₆O on oxidation with acidified potassium dichromate gives a compound 'Y'. Compound 'X' reacts with 'Y' on warming in presence of conc. H₂SO₄to give a sweet smelling substance 'Z'. What are 'X', 'Y' and 'Z'? Give equations of the reactions involved.

Q. Compound '

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. Compound

^{'} 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^{'}

Q. Compound

(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':

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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

The correct option is A CH3CH2CH = NNHCONH2X = CH3 - CH2 - CH2OH; Y = CH3 - CH2 - CHO

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

The correct option is A
CH₃CH₂CH = NNHCONH₂

X = CH₃ - CH₂ - CH₂OH; Y = CH₃ - CH₂ - CHO