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

Question

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:

Canvas Classes · Accepted Answer

Assertion (A): Silica gel is indeed kept in scientific instruments to protect them from moisture. ✓

Reason (R): Silica gel () is a highly porous material that adsorbs moisture from the surrounding air (desiccant). By removing moisture, it prevents corrosion and malfunctioning of sensitive instruments. ✓

R correctly explains A.

Answer: Option (3)

More questions from P Block (Class 11)