Assertion. The first ionization energy of Be is greater than that of B.

Monjur Alahi

Assertion. The first ionization energy of Be is greater than that of B.

Reason. 2p-electron is lower in energy than 2 s-orbital.

(a) If both assertion and reason are true, and reason is the true explanation of the assertion.

(b) If both assertion and reason are true, but the reason is not true explanation of the assertion.

(c) If assertion is true, but reason is false.

(d) If both assertion and reason are false.


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Salim Ahmed Kawsar

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(c)Correct explanation: 2p orbital has higher energy than 2s orbital .

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