Q.

Statement 1: The value of enthalpy of atomisation is maximum at about the middle of each series.Statement 2: There is one unpaired electron per d-orbital and this results in stronger interatomic interaction.

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a

Both statements 1 and 2 are correct

b

Statement 1 is correct statement 2 is incorrect

c

Statement 1 is incorrect statement 2 is correct

d

Both statements 1 and 2 are incorrect

answer is A.

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Detailed Solution

Greater the number of valence electrons, stronger is the resultant bonding and higher the enthalpy of atomisation.
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