Q.

Assertion: Sum of radial and angular nodes in 4d – orbital is 3.
Reason : The sum of radial and angular nodes in an orbital is given by (n –1).

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a

Both Assertion and Reason are correct but Reason is not the correct explanation of  Assertion.

b

Assertion is true but reason is false.

c

Assertion is not correct but reason is correct.

d

Both assertion and reason are correct & reason is the correct explanation of assertion.

answer is D.

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Detailed Solution

A) Radial nodes =  nl1 = 4 – 2 – 1 =1
Angular nodes =   l=2

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