- ✓$(i)\, CH_3-MgI, H_3O^+$ $(ii)\, H_2SO_4, \Delta ,$ $(iii)\, HBr, R_2O_2$
- B$(i)\, CH_3-MgI, H_3O^+$ $(ii)\, H_2SO_4, \Delta ,$ $(iii)\, HBr$
- C$(i)\, CH_3-MgI, H_3O^+$ $(ii)\,HBr$
- D$(i) \,HBr, R_2O_2$ $(ii)\, CH_3-MgI, H_3O^+$
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$2 \mathrm{H}_{2} \mathrm{O} \rightarrow \mathrm{O}_{2}+4 \mathrm{H}^{\oplus}+4 \mathrm{e}^{-} ; \mathrm{E}_{\mathrm{red}}^{0}=1.23 \mathrm{V}$
$(\mathrm{R}=8.314 \;\mathrm{J} \mathrm{mol}^{-1} \mathrm{K}^{-1} ; \text { Temperature }=298 \;\mathrm{K} ;$ oxygen under std. atm. pressure of $1 \;bar$)
Given that $\left.\frac{2.303 \mathrm{RT}}{\mathrm{F}}=0.059 \mathrm{V} \text { at } \mathrm{T}=298 \mathrm{K}\right]$
$(i)$ Pure solvent $\to$ separated solvent molecules $\Delta$ $H_1$
$(ii)$ Pure solute $\to$ separated solute molecules$\Delta$ $H_2$
$(iii)$ Separated solvent and solute molecules $\to$ solution $\Delta H_3$ Solution so formed will be ideal if
