Which gas used for purifying, air in underground enterprises ?
What variety of carbon is used for refining purposes ?
What is edta?
Importance of Organic Chemistry to Mankind ?
Mention a few advantages of photoelectric colorimetric determination.
What is the composition of bronze ?
Which metal is used for coating the backs of the mirrors ?
Acid value definition is number milligrams of koh required to nuetralise the acid present in one gram oil & fats but why not use naoh for nuetralisation?
What is gas-filled lamp ?
Any reaction can be reversed by applying potential. But, why can't we recharge the primary cell?
What is the purest form of water ?
13 Answers APPSC, People Group, TATA,
From what raw material is paper manufactured ?
Which halogen element is used in halogen light?