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Standard XII

Chemistry

Potassium Permanganate

An organic ac...

Question

An organic acid $(A)$ reacts with concentrated $H_{2} S O_{4}$ to give two neutral oxides $(B), (C)$ and a acidic oxide $(D) .$ The compound $(A)$ is:

H_{2} C_{2} O_{4}

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C H_{3} C O O H

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C H C l_{3}

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C C l_{4}

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Solution

The correct option is A $H_{2} C_{2} O_{4}$
Conc. $H_{2} S O_{4}$ is a strong dehydrating agent. It removes water from organic compounds.
$(C O O H)_{2} (A) c o n c . H_{2} S O_{4} - ------ \to C O (B) + C O_{2} (D) + H_{2} O (C)$

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Similar questions

Q. An organic acid

(A)

reacts with concentrated

H_{2} S O_{4}

to give neutral oxides

(B)

, amphoteric oxide

(C)

and an acidic oxide

(D) .

Choose the correct option(s):

Q. A neutral organic compound X of molecular formula C₂H₆O on oxidation with acidified potassium dichromate gives an acidic compound Y. Compound X reacts with Y on warming in the presence of conc. H₂SO₄ to give a sweet smelling substance Z. What are X, Y and Z?

Q. An organic compound

A

with molecular formula

C_{2} H_{7} N

on reaction with nitrous acid gives a compound

B

B

on controlled gives compound

C

C

reduces Tollen's reagent to given silver mirror and

D

B

reacts with

D

in the presence of concentrated sulphuric acid to give sweet smelling compound

E

. Identify

A, B, C, D

and

E

. Give the reaction of

C

with ammonia?

Q. An organic compound

[A]

having molecular formula

C_{2} H_{7} N

on treatment with nitrous acid gives a compound

[B]

having molecular formula

C_{2} H_{6} O

[B]

on treatment with an organic compound

[C]

gives a carboxylic acid

[D]

and a sweet smelling compound

[E]

. Oxidation of

[B]

with acidified potassium dichromate also gives

[D]

Identify

[A], [B], [C], [D]

and

[E]

Q. Write four characteristics of a neutral organic compound '

A

' is

C_{2} H_{6} O

which gives the following reactions:
(i) Gives an acidic compound '

B

' on oxidation with acidified potassium dichromate.
(ii) Compound '

A

' on heating with '

B

' in presence of concentrated

H_{2} {S O}_{4}

gives a sweet smelling substance '

C

'.
Identify the compounds

A, B, C

. Give the equation of the related reactions.

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An organic acid (A) reacts with concentrated H2SO4 to give two neutral oxides (B),(C) and a acidic oxide (D). The compound (A) is:

The correct option is A H2C2O4Conc. H2SO4 is a strong dehydrating agent. It removes water from organic compounds. (COOH)2(A)conc. H2SO4−−−−−−−→CO(B)+CO2(D)+H2O(C)

An organic acid $(A)$ reacts with concentrated $H_{2} S O_{4}$ to give two neutral oxides $(B), (C)$ and a acidic oxide $(D) .$ The compound $(A)$ is:

The correct option is A $H_{2} C_{2} O_{4}$
Conc. $H_{2} S O_{4}$ is a strong dehydrating agent. It removes water from organic compounds.
$(C O O H)_{2} (A) c o n c . H_{2} S O_{4} - ------ \to C O (B) + C O_{2} (D) + H_{2} O (C)$