MCQ
$\,$


- A

- ✓

- C

- D$(A)$ and $(B)$ both





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| Reaction | Energy Change (in $kJ$ ) |
| $Li(s) \to Li(g)$ | $161$ |
| $Li(g) \to Li^+(g)$ | $520$ |
| $\frac {1}{2}F_2(g)\,\to F(g)$ | $77$ |
| $F(g) + e^- \to F^-(g)$ | (Electron gain enthalpy) |
| $Li^+ (g) + F^-(g) \to LiF(s)$ | $-1047$ |
| $Li (s) + \frac {1}{2}F_2(g)\to LiF(s)$ | $-617$ |
Based on data provided, the value of electron gain enthalpy of fluorine would be.....$kJ\,mol^{-1}$
| List$-I ($Molecule$)$ | List$-II($Shape$)$ | ||
| $A.$ | $NH_3$ | $I.$ | Square pyramid |
| $B.$ | $BrF_5$ | $II.$ | Tetrahedral |
| $C.$ | $PCl_5$ | $III$ | Trigonal pyramidal |
| $D.$ | $CH_4$ | $IV$ | Trigonal bipyramida |
$\begin{array}{*{20}{c}} {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,OH} \\ {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|} \\ {( \pm )\,\,C{H_3} - C{H_2} - CH - C{H_3}} \end{array}$ $\xrightarrow[\Delta ]{{{H_3}P{O_4}}}P\,\xrightarrow[{Ni}]{{{D_2}}}Q$