- ✓
- B
- CAcetone + Carbon disulphide
- DHeptane + Octane
Water + Nitric acid shows negative deviation.
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| Column - $I$ | Column - $II$ |
| $(a)$ Copper | $(i)$ Non-metal |
| $(b)$ Fluorine | $(ii)$ Transition Metal |
| $(c)$ Silicon | $(iii)$ Lanthanoid |
| $(d)$ Cerium | $(iv)$ Metalloid |
Identify the correct match:

($en=$ ethylenediamine)
$\mathrm{MnO}_4^{-}+\mathrm{H}^{+}+\mathrm{H}_2 \mathrm{C}_2 \mathrm{O}_4 \rightleftharpoons \mathrm{Mn}^{2+}+\mathrm{H}_2 \mathrm{O}+\mathrm{CO}_2$
The standard reduction potentials are given as below $\left(\mathrm{E}_{\mathrm{red}}^{\circ}\right)$
$\mathrm{E}_{\mathrm{MmO}_4^{-} / \mathrm{Mm}^{2+}}^{\circ}=+1.51 \mathrm{~V}$
$\mathrm{E}_{\mathrm{CO}_2 / \mathrm{H}_2 \mathrm{C}_2 \mathrm{O}_4}^{\circ}=-0.49 \mathrm{~V}$
If the equilibrium constant of the above reaction is given as $K_{\text {eq }}=10^x$, then the value of $x=$____ (nearest integer)