Mastering Your Chemistry Viva

Your chemistry viva is actually the easiest marks you will ever get if you stop panicking.

The secret is knowing exactly why you are doing things. You only use the blue flame because

it burns completely and gives maximum heat. If they ask why you rotate the test

tube, just say uniform heating so the glass doesn't crack. And for crystallization,

never boil it dry. You need that liquid left over to keep the impurities out. Cool it slowly if

you want massive crystals. It is not magic, it is just following the rules of heat

and reactions. Go crush that exam.