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Question

Second ionization potential of Li, Be, B is in the order:

A
Li>Be>B
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B
Li>B>Be
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C
Ne>Li>B
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D
B>Be>C
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Solution

The correct option is B Li>B>Be
Due to penetration effect and stable inert gas configuration. The order of IInd ionisation energy order is Li>B>Be.

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