Question

Assertion :Dipositive zinc exhibits diamagnetism due to loss of two electrons from 3d-orbital of neutral atom. Reason: The electronic configuration of zinc is [Ar]${}^{18}$ 3d${}^{10}$ 4s${}^2$

• A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
• B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
• C. Assertion is correct but Reason is incorrect.
• D. Assertion is incorrect but Reason is correct.

Answer 1

The correct option is D Assertion is incorrect but Reason is correct.

Dipositive zinc exhibits diamagnetism as its configuration is [Ar] 3d${}^{10}$ (electrons are removed from outermost shell i.e. 4s${}^2$. (from isolated gaseous atom)) with no unpair electron. So, due to the unavailability of the unpaired electron, it shows diamagnetism.

The assertion is incorrect but reason is correct.