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JEE Main levelOne or more correct optionsDifficulty 2 of 3ph029

Select the correct statement(s) about the halogens.

AThe electron gain enthalpy of fluorine is less negative than that of chlorine.
BThe bond dissociation enthalpy of $Cl X_{2}$ is greater than that of $F X_{2}$ .
C $F X_{2}$ oxidises water to $O X_{2}$ .
D $Br X_{2}$ is a solid at room temperature.

Answer: A, B, C

A, B and D are correct: F has a lower electron gain enthalpy magnitude than Cl, Cl-Cl (242.6) is stronger than F-F (158.8), and

2 F X_{2} + 2 H X_{2} O 4 HF + O X_{2}

. C is wrong because

Br X_{2}

is a liquid at room temperature.

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