Assertion: A spectral line will be observed for a 2px - 2py transition.
Reason: The energy is released in the form of wave of light when electron drops from 2px to 2py orbital.
(a) If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
(b) If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
(c) If the Assertion is correct but Reason is incorrect.
(d) If both the Assertion and Reason are incorrect.
(e) If the Assertion is incorrect but the Reason is correct.
(d) If both the Assertion and Reason are incorrect.
Explanation:
In this case both assertion and reason are false. Both 2px and 2py orbitals have equal energy (2p orbitals are degenerate), there is no possibility of electron transition and hence no energy is released and thus no spectral line will be observed.