MCQ
Which of the following is true when components forming an ideal solution are mixed
- ✓$\Delta {H_m} = \Delta {V_m} = 0$
- B$\Delta {H_m} > \Delta {V_m}$
- C$\Delta {H_m} < \Delta {V_m}$
- D$\Delta {H_m} = \Delta {V_m} = 1$
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| $I$ | $II$ | |
| $[Cr(H_2O)_6]^{+2}$ | $[Cr(H_2O)_6]^{+3}$ | $(a)$ |
| $[Fe(H_2O)_6]^{+3}$ | $[Fe(CN)_6]^{-3}$ | $(b)$ |
| $[Fe(CN)_6]^{+3}$ | $[Ru(CN)_6]^{-3}$ | $(c)$ |
| $[NiF_6]^{-4}$ | $[NiF_6]^{-2}$ | $(d)$ |
$\mathrm{MnO}_4^{-}+\mathrm{H}^{+}+\mathrm{H}_2 \mathrm{C}_2 \mathrm{O}_4 \rightleftharpoons \mathrm{Mn}^{2+}+\mathrm{H}_2 \mathrm{O}+\mathrm{CO}_2$
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)