Answer :

i) A is methylated spirit which is a mixture of 95% of ethanol and 5% of methanol.


B is rectified spirit which is a mixture of 95.5% of ethanol and 4.5% of water.


ii) By adding petrol to ethanol, we can get power alcohol.


Power alcohol is used in automobiles. It acts as best fuel for automobiles.


iii) Pyridine should be added to obtained denatured spirit. This makes alcohol unfit for drinking.


iv) Denatured spirit is used as a solvent and a fuel.


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