Consider Assertion and Reason given below.

Assertion (A) : With increase in atomic number the energies of the orbitals in the same subshell decrease due to increase in effective nuclear charge $(Z_{e f f})$ .
Reason (R ) : In an atom the $(Z_{e f f})$ experienced by the electron in different orbitals is in the order $3 d > 3 p > 3 s$
Choose the correct answer form the following:

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(A) is correct but (R) is wrong

(A) is wrong but (R) is correct

Both (A) and (R) are correct and (R) is the correct explanation of (A)

Both (A) and (R) are correct but (R) is not the correct explanation of (A)

answer is C.

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Detailed Solution

In an atom In an atom the $(Z_{e f f})$ experienced by the electron decrease with increase in azimuthal quantum number.

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