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Q.

Read the following statement and explanation and answer as per the options given below ;Assertion             :            The first ionization energy of Be is greater than that of BReason                 :            2p-orbital is lower in energy than 2s

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a

If both assertion and reason are Correct, and reason is the Correct explanation of the assertion

b

If both assertion and reason are Correct, but reason is not the Correct explanation of the assertion

c

If assertion is Correct. but reason is Incorrect

d

If assertion is Incorrect, but reason is Correct

answer is C.

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Detailed Solution

Assertion is correct but reason is incorrect because the energy of 2s orbital is less than  2p  orbital.
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