RE-NEET2026Chemistry-Inorganic Chemistry

RE-NEET 2026 Chemistry Transition Metals Assertion Reason Question

Type: Assertion Reason-conceptual-Medium

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R.

Assertion A: Generally, 3d transition metals have high melting points. Reason R: Involvement of 3d-electrons in addition to 4s-electrons in the interatomic metallic bonding.

In light of the above statements, choose the most appropriate answer from the options given below:

A

Both A and R are correct and R is NOT the correct explanation of A.

B

A is correct but R is not correct.

C

A is not correct but R is correct.

D

Both A and R are correct and R is the correct explanation of A.

Correct Answer

Option D

Detailed Explanation

The high melting points of 3d transition metals are due to the involvement of both 3d and 4s electrons in metallic bonding.

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