MCQ
The wave nature of an electron was first given by
- ✓De-Broglie
- BHeisenberg
- CMosley
- DSommerfield
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| List$-I$ | List$-II$ |
| $A$ $H _3 O ^{+}$ | $I$ Tetrahedral |
| $B$ Acetylide anion | $II$ Linear |
| $C$ $NH _4^{+}$ | $III$ Pyramidal |
| $D$ $ClO _2^{-}$ | $IV$ Bent |
Choose the correct answer from the options given below :

$(A)\,S_{\left( g \right)}^ - \,\, \to \,\,S_{\left( g \right)}^{2 - }\,$
$(B)\,Na_{\left( g \right)}^ + \, + \,Cl_{\left( g \right)}^ - \,\, \to \,\,NaCl\,(s)$
$(C)\,{N_{\left( g \right)}}\, \to \,\,N_{\left( g \right)}^ - $
$(D)\,Al_{\left( g \right)}^{2 + }\, \to \,\,Al_{\left( g \right)}^{3 + }$
Given that the lonic product of $Ni ( OH )_{2}$ is $2 \times 10^{-15}$