MCQ
Which of the following substance is an electrolyte
- AChloroform
- BBenzene
- CToluene
- ✓Magnesium chloride
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if $T_1 < T_2$ then $X$ and $Y$ respectively are
| | A | B |
| (a) | $\text{H}_2\text{C}=\text{CH}_2$ | $\text{CH}\equiv\text{CH}$ |
| (b) | $\text{CH}_2=\text{CHBr}$ | $\text{CH}\equiv\text{CH}$ |
| (c) | $\text{CH}_2=\text{CHBr}$ | $\text{CH}_2=\text{CH}_2$ |
| (d) | $\text{CH}_2=\text{CH}_2$ | $\text{CH}\equiv\text{CBr}$ |
$\frac{1}{2}C{l_2}(g)\xrightarrow{{\frac{1}{2}{\Delta _{diss}}{H^\Theta }}}Cl(g)\xrightarrow{{{\Delta _{eg}}{H^\Theta }}}$ $C{l^ - }(g)\xrightarrow{{{\Delta _{Hyd}}{H^\Theta }}}C{l^ - }(aq)$
(using the data,
${{\Delta _{diss}}H_{C{l_2}}^\Theta } = 240\,kJ\,mol^{-1}, {{\Delta _{eg}}H_{C{l}}^\Theta }= -349 \,kJ\,mol^{-1},$${{\Delta _{Hyd}}H_{C{l}}^\Theta }= -381 \,kJ\,mol^{-1}$ ) will be ............. $\mathrm{kJ\,mol}^{-1}$
${N_2}(g)\, + \,3{H_2}(g)\,\rightleftharpoons \,2N{H_3}\,(g)$
at constant temperature and pressure. Then the ratio of the final volume to the initial volume of gases are.