In the laboratory preparation of $H C l$ , which of the following are preferred?

Conc.

H_{2} S O_{4}

as reactant

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Conc.

H_{2} S O_{4}

as drying agent

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Temperature of reaction mixture below

200^{0} C

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Use of activated carbon as catalyst

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Solution

The correct options are
A Conc. $H_{2} S O_{4}$ as reactant
B Conc. $H_{2} S O_{4}$ as drying agent
C Temperature of reaction mixture below $200^{0} C$
The laboratory preparation of $H C l$ includes dehydration of hydrochloric acid with sulphuric acid. It can also be generated by the reaction of sulphuric acid with sodium chloride.

The reaction occurs at room temperature. Sulphuric acid acts as a reactant as well as a drying agent.

$N a C l + H_{2} S O_{4} \to N a H S O_{4} + H C l$

Hence, the correct options are $A$ , $B$ and $C$

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Similar questions

Q. Which of the following are used as drying agent during the preparation of

H C l

from the

N a C l

and

H_{2} S O_{4}

In the laboratory preparation of $H C l$ gas, the drying agent used conventionally (conc. $H_{2} S O_{4}$ ) can be replaced by quicklime & phosphorous pentoxide.

Q. In the laboratory preparation of ammonia, a student used

H_{2} S O_{4}

for drying instead of CaO. What would be the repercussion of his action?

Q. Why is

H C l

gas passed through

H_{2} S O_{4}

during the laboratory preparation of hydrochloric acid?

Q. Which of the following statements is/are correct?
Commercial

H C l

is prepared by heating

N a C l

with

H_{2} S O_{4}

as follows:

2 N a C l + H_{2} S O_{4} \to N a_{2} S O_{4} + 2 H C l

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In the laboratory preparation of HCl, which of the following are preferred?

In the laboratory preparation of $H C l$ , which of the following are preferred?