Surface Chemistry — JEE Main 2023 · 30 Jan, Morning shift · Q2277

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:

Accepted Answer

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

Answer

(B) (A) is true but (R) is false

Answer

(C) (A) is false but (R) is true

Answer

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

Surface Chemistry: JEE Main 2023 Chemistry question

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Surface Chemistry: JEE Main 2023 Chemistry question

More on Surface Chemistry