Q.

Statement I : Fluorine atom has lesser magnitude of electron gain enthalpy than chlorine atom
Statement II : Additional electrons are repelled more strongly by 3p electrons in ‘Cl’ atom than by 2p electrons in ‘F’ atom

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a

Statement I and Statement II are true.

b

Statement I is true and  statement II is false.

c

Statement I is false and Statement II is true.

d

Statement I and Statement II are false.

answer is B.

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Detailed Solution

Additional electron are repelled more strongly by 2p electrons in 'F' atom than by '3p' electrons in 'Cl' atom;

Due to small size of fluorine and inter electronic repulsions, fluorine repels the incoming electron;

Its EGE is lesser than that of chlorine;

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Statement I : Fluorine atom has lesser magnitude of electron gain enthalpy than chlorine atomStatement II : Additional electrons are repelled more strongly by 3p electrons in ‘Cl’ atom than by 2p electrons in ‘F’ atom