a2zinterviews

1.	Which of the following gives effervescence with sodium bicarbonate?
	A.  Aldehyde
	B.  Carboxylic acid
	C.  Alcohol
	D.  Ketone

Answer

Ans: B Carboxylic acid

2.	Ethanol is prepared industrially by
	A. Fermentation of molasses
	B. Hydration of ethane
	C. Oxidation of molasses
	D. Reduction of molasses

Answer

Ans: A Fermentation of molasses

3.	The metal constituent of chlorophyll is
	A.  Iron
	B.  Potassium
	C.  Magnesium
	D.  Manganese

Answer

Ans: C Magnesium

4.	Candles contains a mixture of
	A.  Bees wax and paraffin wax
	B.  Bees wax and stearic acid
	C.  Paraffin wax and stearic acid
	D.  Higher fatty acid

Answer

Ans: C Paraffin wax and stearic acid