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Name: JEE Advanced Chemistry
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Question

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Answer: C

💡 Solution & Explanation

Ionisation energy depends on electronic configuration and effective nuclear charge 2 2 2 2 2 2 2 2 1 2 2 1 Be 1s C 1s 2s N 1s 2s 2p B 1s 2s        

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💡 Solution & Explanation

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