Q. Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : In expensive scientific instruments, silica gel is kept in watch-glasses or in semipermeable membrane bags.
Reason (R) : Silica gel adsorbs moisture from air via adsorption, thus protects the instrument from water corrosion (rusting) and / or prevents malfunctioning.
In the light of the above statements, choose the correct answer from the options given below :

 430  137 JEE MainJEE Main 2023Surface Chemistry Report Error

Solution:

Silica gel prevents water corrosion (rusting) and instrument malfunction by adsorbing moisture from the air