Chemical Reactions of Carboxylic Acids
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CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323789 Among the given three acids:

supporting img

The correct order of ease acid catalyzed esterification is

1 \({\mathrm{X>Z>Y}}\)
2 Y \({\mathrm{>}}\) X \({\mathrm{>}}\) Z
3 \({\mathrm{Z>X>Y}}\)
4 \({\mathrm{\mathrm{Y}>\mathrm{Z}>\mathrm{X}}}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323790 The reagent which does not give acid chloride on treating with a carboxylic acid is

1 \(\mathrm{PCl}_{5}\)
2 \(\mathrm{Cl}_{2}\)
3 \(\mathrm{SOCl}_{2}\)
4 \(\mathrm{PCl}_{3}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323791 The following steps are given for the mechanism of esterification of carboxylic acids.
I. The protonated esters looses a proton to give the ester.
II. Protonation of the carbonyl oxygen activates the carbonyl group towards nucleophilic addition of the alcohol.
III. Proton transfer in the tetrahedral intermediate occurs.
Arrange the following steps in their correct sequence.

1 I, II and III
2 I, III and II
3 II, III and I
4 III, II and I
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323792 The -COOH group in a carboxylic acid can be replaced by ' \(\mathrm{H}\) ' by heating the acid with

1 \(\mathrm{Zn}\) with \(\mathrm{HCl}\)
2 \(\mathrm{H}_{2}\) in presence of nickel
3 Sodalime
4 Bromine and concentrated aqueous alkali
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CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323789 Among the given three acids:

supporting img

The correct order of ease acid catalyzed esterification is

1 \({\mathrm{X>Z>Y}}\)
2 Y \({\mathrm{>}}\) X \({\mathrm{>}}\) Z
3 \({\mathrm{Z>X>Y}}\)
4 \({\mathrm{\mathrm{Y}>\mathrm{Z}>\mathrm{X}}}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323790 The reagent which does not give acid chloride on treating with a carboxylic acid is

1 \(\mathrm{PCl}_{5}\)
2 \(\mathrm{Cl}_{2}\)
3 \(\mathrm{SOCl}_{2}\)
4 \(\mathrm{PCl}_{3}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323791 The following steps are given for the mechanism of esterification of carboxylic acids.
I. The protonated esters looses a proton to give the ester.
II. Protonation of the carbonyl oxygen activates the carbonyl group towards nucleophilic addition of the alcohol.
III. Proton transfer in the tetrahedral intermediate occurs.
Arrange the following steps in their correct sequence.

1 I, II and III
2 I, III and II
3 II, III and I
4 III, II and I
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323792 The -COOH group in a carboxylic acid can be replaced by ' \(\mathrm{H}\) ' by heating the acid with

1 \(\mathrm{Zn}\) with \(\mathrm{HCl}\)
2 \(\mathrm{H}_{2}\) in presence of nickel
3 Sodalime
4 Bromine and concentrated aqueous alkali
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CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323789 Among the given three acids:

supporting img

The correct order of ease acid catalyzed esterification is

1 \({\mathrm{X>Z>Y}}\)
2 Y \({\mathrm{>}}\) X \({\mathrm{>}}\) Z
3 \({\mathrm{Z>X>Y}}\)
4 \({\mathrm{\mathrm{Y}>\mathrm{Z}>\mathrm{X}}}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323790 The reagent which does not give acid chloride on treating with a carboxylic acid is

1 \(\mathrm{PCl}_{5}\)
2 \(\mathrm{Cl}_{2}\)
3 \(\mathrm{SOCl}_{2}\)
4 \(\mathrm{PCl}_{3}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323791 The following steps are given for the mechanism of esterification of carboxylic acids.
I. The protonated esters looses a proton to give the ester.
II. Protonation of the carbonyl oxygen activates the carbonyl group towards nucleophilic addition of the alcohol.
III. Proton transfer in the tetrahedral intermediate occurs.
Arrange the following steps in their correct sequence.

1 I, II and III
2 I, III and II
3 II, III and I
4 III, II and I
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323792 The -COOH group in a carboxylic acid can be replaced by ' \(\mathrm{H}\) ' by heating the acid with

1 \(\mathrm{Zn}\) with \(\mathrm{HCl}\)
2 \(\mathrm{H}_{2}\) in presence of nickel
3 Sodalime
4 Bromine and concentrated aqueous alkali
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CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323789 Among the given three acids:

supporting img

The correct order of ease acid catalyzed esterification is

1 \({\mathrm{X>Z>Y}}\)
2 Y \({\mathrm{>}}\) X \({\mathrm{>}}\) Z
3 \({\mathrm{Z>X>Y}}\)
4 \({\mathrm{\mathrm{Y}>\mathrm{Z}>\mathrm{X}}}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323790 The reagent which does not give acid chloride on treating with a carboxylic acid is

1 \(\mathrm{PCl}_{5}\)
2 \(\mathrm{Cl}_{2}\)
3 \(\mathrm{SOCl}_{2}\)
4 \(\mathrm{PCl}_{3}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323791 The following steps are given for the mechanism of esterification of carboxylic acids.
I. The protonated esters looses a proton to give the ester.
II. Protonation of the carbonyl oxygen activates the carbonyl group towards nucleophilic addition of the alcohol.
III. Proton transfer in the tetrahedral intermediate occurs.
Arrange the following steps in their correct sequence.

1 I, II and III
2 I, III and II
3 II, III and I
4 III, II and I
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323792 The -COOH group in a carboxylic acid can be replaced by ' \(\mathrm{H}\) ' by heating the acid with

1 \(\mathrm{Zn}\) with \(\mathrm{HCl}\)
2 \(\mathrm{H}_{2}\) in presence of nickel
3 Sodalime
4 Bromine and concentrated aqueous alkali
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