Question

Carboxylic Acid mcq question image
In the above sequence of reaction $$X$$  and $$Y$$  are respectively

A. \[{{H}_{2}}/Pt;B{{r}_{2}}\]
B. \[KMn{{O}_{4}};{{H}_{2}}/Pt\]
C. \[KMn{{O}_{3}}\left( aq \right);HI/P\]  
D. \[N{{H}_{2}}-N{{H}_{2}}/KOH,HI/P\]
Answer :   \[KMn{{O}_{3}}\left( aq \right);HI/P\]
Solution :
\[KMn{{O}_{4}}\]   converts \[-C{{H}_{3}}\]  group of toluene into \[-COOH\]   while $$HI$$  reduces \[-COOH\]   group into \[-C{{H}_{3}}\]  group.

Releted MCQ Question on
Organic Chemistry >> Carboxylic Acid

Releted Question 1

When acetaldehyde is heated with Fehling’s solution it gives a precipitate of

A. $$Cu$$
B. $$CuO$$
C. $$C{u_2}O$$
D. $$Cu + C{u_2}O + CuO$$
Releted Question 2

In the Cannizzaro reaction given below,
\[2PhCHO\xrightarrow{^{-}OH}PhC{{H}_{2}}OH+PhCO_{2}^{-},\]
the slowest step is

A. the attack of $$^ - OH$$  at the carbonyl group,
B. the transfer of hydride to the carbonyl group,
C. the abstraction of proton from the carboxylic acid,
D. the deprotonation of $$PhC{H_2}OH.$$
Releted Question 3

When propionic acid is treated with aqueous sodium bicarbonate, $$C{O_2}$$  is liberated. The $$'C'$$ of $$C{O_2}$$  comes from

A. methyl group
B. carboxylic acid group
C. methylene group
D. bicarbonate
Releted Question 4

Benzoyl chloride is prepared from benzoic acid by

A. $$C{l_2},hv$$
B. $$S{O_2}C{l_2}$$
C. $$SOC{l_2}$$
D. $$C{l_2},{H_2}O$$

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