MCQ
Methyl alcohol can be distinguished from ethyl alcohol using
- AFehling solution
- BSchiff's reagent
- ✓Sodium hydroxide and iodine
- DPhthalein fusion test
$C{{H}_{3}}OH\xrightarrow{NaOH/{{I}_{2}}}\text{No}\,ppt$
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$(I)$ ${H_2}(g) + \frac{1}{2}{O_2}(g) \to {H_2}O(l);$
$\Delta {H^o_{298\,K}} = - 285.9\,kJ\,mo{l^{ - 1}}$
$(II)$ ${H_2}(g) + \frac{1}{2}{O_2}(g) \to {H_2}O(g);$
$\Delta {H^o_{298\,K}} = - 241.8\,kJ\,mo{l^{ - 1}}$
The molar enthalpy of vapourisation of water will be.....$kJ\,mol^{-1}$