1.

Assertion :The energy of an electron is largely determined by its principal quantum number. Reason :The principal quantum numberis a measure of the most probable distance of finding the electrons around the nucleus.

Answer»

If both ASSERTION & REASON are TRUE and the reason is the correct explanation of the assertion.
If both Assertion & Reason are true but the reason is not the correct explanation of the assertion.
If Assertion is true statement but Reason is FALSE.
If both Assertion and Reason are false statements.

Answer :A


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