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Assertion :First ionization energy is lo...

Assertion :First ionization energy is lower than oxygen.
Reason :Across a period effective charge decreases.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If the assertion and reason both are false.

Text Solution

Verified by Experts

The correct Answer is:
D
First ionisation energy for N is more than oxygen. Nuclear charge increases across the period.
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