MCQ
The correct order of bond length is :-
- A$F_2 < F_2^+ < F_2^-$
- ✓$F_2^+ < F_2 < F_2^-$
- C$F_2^+ < F_2^- < F_2$
- D$F_2^- < F_2^+ < F_2$
$\begin{gathered}
F_2^ + < {F_2} < F_2^ - \,\,\,B.L. \hfill \\
1.5\,\,\,\,\,\,\,1\,\,\,\,\,\,\,\,\,5\,\,\,\,\,\,\,B.O. \hfill \\
\end{gathered} $
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$(A)$ The compound is optically active
$(B)$ The compound possesses centre of symmetry
$(C)$ The compound possesses plane of symmetry
$(D)$ The compound possesses axis of symmetry
$(I)$ ${H_2}(g) + \frac{1}{2}{O_2}(g) \to {H_2}O(l);$
$\Delta {H^o_{298\,K}} = - 285.9\,kJ\,mo{l^{ - 1}}$
$(II)$ ${H_2}(g) + \frac{1}{2}{O_2}(g) \to {H_2}O(g);$
$\Delta {H^o_{298\,K}} = - 241.8\,kJ\,mo{l^{ - 1}}$
The molar enthalpy of vapourisation of water will be.....$kJ\,mol^{-1}$