Q. During a chloride test, white fumes are produced due to formation of
1) ammonium chloride
2) ammonium nitrate
3) silver nitrate
4) none of these
Q. Distillation the reduced pressure is used for liquids which have
1) Crystalline
2) amorphous
3) chemical
4) alkaline
Q. Diamond is the_______ form of carbon
1) crystalline
2) amorphous
3) chemical
4) alkaline
Q. Diamond is an example of
1) molecular crystal
2) ionic crystal
3) covalent crystal
4) metallic crystal
Q. Detergents Produce lather with hard water because
1) they are soluble in hard water
2) they are colorless substances
3) the calcium and magnesium salts of sulphonic acids are soluble in water
4) they form sodium carbonate with hard water
Q. Corrosion of a metal occurs
1) anode
2) cathode
3) both anode and cathode
4) none of the above
Q. containers for carrying strong acids are made of
1) platinum
2) brass
3) copper
4) lead
Q. Colloids are purified by
1) peptisation
2) coagulation
3) condensation
4) dialysis
Q. Colloids
1) are true solution
2) are suspensions of one phase in another
3) are two phase system
4) contain only water soluble substances
Q. Chlorine is not used in the preparation of
1) hydrochloric acid
2) phosgene
3) phosphene
4) bleaching powder
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