Fluorine the I^(st) member of group 17^(th) differs from the other mem – InterviewSolution

1.	Fluorine the I^(st) member of group 17^(th) differs from the other members of the group in many respects due to the following reasons. (i) Small size(ii) Hight EN(iii) absence of 'd' orbitals (iv) its Delta H dissociation in molecular form of X_(2) is the least.The most basic among the following
Answer» Cl-Cl F-F I-I Br-Br Solution :Down the GROUP BOND enthalpy decreases and in `F_(2)` internuclear and itnerelectronic repulsions DECREASED bond ENERGY.

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