MCQ
Power alcohol is
- AAn alcohol of $95\%$ purity
- ✓A mixture of petrol hydrocarbons and ethanol
- CRectified spirit
- DA mixture of methanol and ethanol
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$A^+/A = \,-\,2.93\, Volt$, $B^+/B = 0.80\,V$
$C^{+2}/C = \,-\,2.37\, Volt$, $D^{+3}/D = \,-\,0.74\,V$
Increasing order of reducing power of these metals

The order of acidity is
$S{O_2} + \frac{1}{2}{O_2} \to S{O_3} + y\,kcal$
Find out the heat of formation of $S{O_2}$