Question

Assertion: Number of radial and angular nodes for $3p$-orbital are 1, 1 respectively.
Reason: Number of radial and angular nodes depends only on principal quantum number.

• A. If both assertion and reason are true and reason is the correct explanation of assertion.
• B. If both assertion and reason are true but reason is not the correct explanation of assertion.
• C. If assertion is true but reason is false.
• D. If both assertion and reason are false.

Answer 1

Answer: (C)

For $3p$-orbital, number of radial nodes

$ = n - l - 1 = 3 - 1 - 1 = 3 - 2 = 1$

Number of angular nodes $= l = 1$

Number of radial and angular nodes depend on both n and $l$.