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Observe the I.P.₁ I.P.₂, IP.₃ and I.P.₄ respectively for element A, B, C and D. Identify which element is expected to belong to IIA group (all values are in kJ/mole)

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786, 1577, 3231, 4355

737, 4500, 7320, 9400

695, 2456, 26912, 29544

800, 2427, 3659, 25025

answer is C.

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Detailed Solution

3^rd IP is very large

Group number = large IP number - 1

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