Surface Chemistry JEE Main 2023: Silica Gel Assertion Reason

JEE-Main_2023

30-1-23{S1}

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 :

Select the correct option:

(A) is false but (R) is true

(A) is true but (R) is false

Both (A) and (R) are true and (R) is the correct explanation of (A)

Both (A) and (R) are true but (R) is not the correct explanation of (A)

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

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

Question Tags

JEE Main

Chemistry