Assertion: The first ionization energy of \( \mathrm{Be} \) is greater than that of B. Reason: \...

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Assertion: The first ionization energy of \( \mathrm{Be} \) is greater than that of B.
Reason: \( 2 \mathrm{p} \) orbital is lower in energy than 2 s orbital.
(a) Both assertion and reason are true and reason is the correct explanation of assertion.
(b) Both assertion and reason are true but reason is not correct explanation of Assertion.
(c) Assertion is true but reason is false.
(d) Assertion is false but reason is true.
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