Benzene can be prepared by decarboxylation of the sodium salt of benzoic acid in presence of :

sodium hydroxide

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sodium carbonate

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sodium bicarbonate

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sodium hydroxide and calcium oxide

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Solution

The correct option is C sodium hydroxide and calcium oxide
The decarboxylation of benzoic acid with soda lime gives benzene.
The reaction can be given as follow:
$C_{6} H_{5} C O O H + 2 N a O H \to C_{6} H_{6} + N a_{2} C O_{3}$

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Similar questions

Q. Sodium hydroxide is present in the _____ state, in the preparation of phenol from benzene sulphonic acid.

Q. Common salt is prepared from the neutralisation reaction of hydrochloric acid and sodium hydroxide.

The diagram represents the preparation of sodium sulphate salt from dilute

H_{2} S O_{4}

acid and sodium hydroxide. Sulphurous acid forms two types of salts on reaction with an alkali:

Q. Which is a neutral acid?
(a) hydrochloric acid
(b) common salt
(c) sodium hydroxide
(d) calcium hydroxide

Write the following in the form of a word equation:
Sodium hydroxide reacts with calcium bromide to form calcium hydroxide and sodium bromide.In the formula $C a B r_{2}$ what does Ca stand for and what is its valency?

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Benzene can be prepared by decarboxylation of the sodium salt of benzoic acid in presence of :

The correct option is C sodium hydroxide and calcium oxideThe decarboxylation of benzoic acid with soda lime gives benzene. The reaction can be given as follow:C6H5COOH+2NaOH→C6H6+Na2CO3

The correct option is C sodium hydroxide and calcium oxide
The decarboxylation of benzoic acid with soda lime gives benzene.
The reaction can be given as follow:
$C_{6} H_{5} C O O H + 2 N a O H \to C_{6} H_{6} + N a_{2} C O_{3}$