Q.

Statement 1 : Electron gain enthalpy always becomes less negative as we go down a group in Modern periodic table.Statement 2 : The size of the atom increases on going down the group in Modern periodic table and the added electron would be farther from the nucleus.

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a

Both Statement 1 and Statement 2 are true .

b

Statement 1 is true and Statement 2 is false.

c

Statement 1 is false and Statement 2 is true.

d

Both Statement 1 and Statement 2 are false.

answer is C.

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Detailed Solution

Statement 1 : Electron gain enthalpy does not always become less negative as we go down a group in Modern periodic table.Ex. ΔHeg  2p  series  <  ΔHeg 3p  series.
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