MCQ
Identify the reactant $X$ and the product $Y$
- A$X = MgC{l_2};\;\;Y = C{H_3}CH = C{H_2}$
- B$X = C{H_3}MgCl;\;Y = {C_2}{H_5}COC{H_3}$
- ✓$X = C{H_3}MgCl;\;Y = {(C{H_3})_3}\;C - OH$
- D$X = {C_2}{H_5}MgCl;\,Y = {(C{H_3})_3}C - OH$
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$CH_4\,(g)\,\,186.2\,JK^{-1}\,mol^{-1}$
$O_2\,(g)\,\,205.2\,JK^{-1}\,mol^{-1}$
$CO_2\,(g)\,\,213.6\,JK^{-1}\,mol^{-1}$
$H_2O\,(g)\,\,69. 9\,JK^{-1}\,mol^{-1}$
The entropy change $(\Delta S^o)$........$JK^{-1}\,mol^{-1}$ for the reaction
$CH_4\,(g) + 2O_2\,(g) \to CO_2\,(g) + 2H_2O(l)$ is
$(i)$ A $0.5\,m$ $NaBr$ solution has a higher vapour pressure than a $0.5\,m\,BaCl_2$ solution at the same temperature
$(ii)$ Pure water freezes at the higher temperature than pure methanol
$(iii)$ a $0.1\,m\,NaOH$ solution freezes at a lower temperature than pure water
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