MCQ
The given reaction, $\mathrm{CuSO}_4+\mathrm{Zn} \rightarrow \mathrm{Cu}+\mathrm{ZnSO}_4$ is an example of :
- ✓Metal displacement reaction.
- BNon $-$ metal displacement reaction.
- CMetal addition reaction.
- DNon $-$ metal addition reaction.
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Given $\Delta H$
$(i)\, Fe_2O_{3(s)}+3C_{(graphite)} \to 2Fe_{(s)} + 3CO_{(g)}$ $492\, kJ/mol$
$(ii)\, FeO_{(s)}+C_{(graphite)} \to Fe_{(s)} + CO_{(g)}$ $156\, kJ/mol$
$(iii)\, C_{(graphite)} + O_{2(g)} \to CO_{2(g)}$ $-393 \,kJ/mol$
$(iv)\, CO_{(g)} + \frac{1}{2}\, O_{2(g)} \to CO_{2(g)}$ $-283\, kJ/mol$
where $K_c$ is the equilibrium constant
| $List-I$ (Compound) | $List-II$ (Shape) |
| $(A)$ $BrF _{5}$ | $(I)$ bent |
| $(B)$ $\left[ CrF _{6}\right]^{3-}$ | $(II)$ square pyramidal |
| $(C)$ $O _{3}$ | $(III)$ trigonal bipyramidal |
| $(D)$ $PCl _{5}$ | $(IV)$ octahedral |
Choose the correct answer from the options given below.
$O ^{2-}, F ^{-}, Al , Mg ^{2+}, Na ^{+}, O ^{+}, Mg , Al ^{3+}, F$