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17.	Which of the following is used in car batteries?
	A.  Hydrogen
	B.  Sulphur
	C.  Ammonia
	D.  Sulphuric acid

Answer

Ans: D Sulphuric acid

18.	Which of the following compounds does not contain carbonyl group?
	A.  Propanone
	B.  Ethanol
	C.  Ethanoic acid
	D.  Methanol

Answer

Ans: B Ethanol

19.	The mixture of 25% ethanol and 75% petrol is known as
	A.  Rectified spirit
	B.  Power alcohol
	C.  Absolute alcohol
	D.  Methylated spirit

Answer

Ans: B Power alcohol

20.	Which one among the following is used as a moderator in nuclear reactors?
	A.  Ozone
	B.  Heavy water
	C.  Heavy hydrogen
	D.  Hydrogen peroxide

Answer

Ans: B Heavy water