Chemistry-Quantum Mechanical Model

NEET Chemistry Quantum Mechanical Model Assertion Reason Question

Type: Assertion Reason-assertion-Easy-Class 11

Assertion (A): The wavenumber is commonly expressed in cm⁻¹. | Reason (R): Wavenumber is defined as the number of wavelengths per unit length.

A

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

B

Both A and R are true, but R is not the correct explanation of A.

C

A is true, but R is false.

D

A is false.

Correct Answer

Option B

Detailed Explanation

The assertion is true as wavenumber is commonly used in cm⁻¹, but the reason does not explain this fact. The reason correctly defines wavenumber but does not relate to why cm⁻¹ is commonly used.

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