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17.	Oxides of metals are generally
	A.  Amphoteric
	B.  Neutral
	C.  Basic
	D.  Acidic

Answer

Ans: C Basic

18.	The sodium salt of a long chain carboxylic acid possessing cleaning action is
	A.  A detergent
	B.  A fat
	C.  A soap
	D.  An ester

Answer

Ans: A A detergent

19.	Kerosene is a mixture of
	A.  Aromatic hydrocarbons
	B.  Alicyclic hydrocarbons
	C.  Saturated hydrocarbons
	D.  Aliphatic hydrocarbons

Answer

Ans: D Aliphatic hydrocarbons

20.	The halogen being used as analgesic is
	A.  Fluorine
	B.  Bromine
	C.  Iodine
	D.  Chlorine

Answer

Ans: B Bromine