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Which of the following is not suitable f...

Which of the following is not suitable for use in a desiccator to dry substances

A

Conc. `H_(2)SO_(4)`

B

`Na_(2)SO_(4)`

C

`CaCl_(2)`

D

`P_(4)O_(10)`

Text Solution

Verified by Experts

The correct Answer is:
B
Sodium sulphate `(Na_(2)SO_(4))` has a large capacity for absorption of water, forming the decarbohydrate `(Na_(2)SO_(4).10H_(2)O)` below `30^(@)`, but drying is slow and inefficient, especially for solvents that are sparingly soluble in water. It is suitable for the preliminary drying of most types of organic compounds.
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