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Test: Reactions Involving Acid Group - JEE MCQ


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20 Questions MCQ Test - Test: Reactions Involving Acid Group

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Test: Reactions Involving Acid Group - Question 1

Which one of the following compounds undergoes decarboxylation upon heating ?

Detailed Solution for Test: Reactions Involving Acid Group - Question 1
- Keto acids are decarboxylated by following mechanism
Test: Reactions Involving Acid Group - Question 2

The correct product of the following sequence of reactions

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Test: Reactions Involving Acid Group - Question 3


In the above reaction, product (B) is:

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Test: Reactions Involving Acid Group - Question 4

in the above reactions is
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Test: Reactions Involving Acid Group - Question 5
Hydrolsis of an ester gives a carboxylic acid which on Kolbe's electrolysis yields ethane. The ester is
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Ethane is obtained by the electrolysis of sodium or potassium salt of ethanoic acid , hence the ester must be ethanoate .
Test: Reactions Involving Acid Group - Question 6
What is the missing reagent in the synthesis shown below
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Test: Reactions Involving Acid Group - Question 7
The compound that undergoes decarboxylation most readily under mild condition is
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-Ketoacids undergo decarboxylation easily.
Test: Reactions Involving Acid Group - Question 8
The most suitable reagent for the conversion of is
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The alcohol can be converted to aldehyde group by treating with oxidising agent Pyridinium chloro chromate it is abbreviated as and is called Collin's reagent. This reagent is used in non aqueous solvent like It is a very good reagent because it checks the further oxidation of aldehyde to carboxylic acid while rest oxidising agent oxidise aldehyde into carboxylic acid.
Test: Reactions Involving Acid Group - Question 9
The major product form by the monobromination of phenyl benzoate is
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In phenyl benzoate the ring gets deactivated, while ring gets activated due to lone pairs on oxygen atom. So it can give ortho or para bromo product. But the ortho position is sterically hindered, so it will give para compound as a major product.
Test: Reactions Involving Acid Group - Question 10
Number of compounds that will undergo decarboxylation on heating
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(I), (III) and (V) will under go decarboxylation on heating.
Test: Reactions Involving Acid Group - Question 11
Number of reactions in which product has one carbon lesser than reactant
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II, III, IV and V
Test: Reactions Involving Acid Group - Question 12
Which of the following compound would be expected to decarboxylates when heated
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In case of b-keto acid, the readly decarboxylation occurs due to 6-membered low energy transition state formation.
Test: Reactions Involving Acid Group - Question 13
Which of the following does not undergo Hell - Volhard Zelinsky reaction?
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None of these contains alpha atom
Test: Reactions Involving Acid Group - Question 14
Which of the following dicarboxylic acids gives a cyclic.anhvdride on heating?
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Succinic acid on heating forms its anhydride. Option are unstable. Only option 2 is stable.
Test: Reactions Involving Acid Group - Question 15


(A); Product (A) of the reaction is:

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Test: Reactions Involving Acid Group - Question 16

In a set of reactions, acetic acid yielded a product D.

The structure of (D) would be

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Test: Reactions Involving Acid Group - Question 17
Which lactone is formed by heating the following hydroxy acid?
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Test: Reactions Involving Acid Group - Question 18
Acetic acid on heating in presence of gives
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is a dehydrating agent and removes a molecule of water from two molecules of acetic acid
Test: Reactions Involving Acid Group - Question 19
When acetic acid reacts with ketene, product formed
Detailed Solution for Test: Reactions Involving Acid Group - Question 19
acetic anhydride
(Ketene)
Test: Reactions Involving Acid Group - Question 20
The compound, which evolves carbon dioxide on treatment with aqueous solution of sodium bicarbonate at is
Detailed Solution for Test: Reactions Involving Acid Group - Question 20
hydrolyses to form
even at which subsequently reacts with (sodium bicarbonate) present in the same medium to form carbon dioxide .
The reaction involved is given below.
Thus, the option (b) is correct answer.
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