General Science QUESTIONS AND ANSWERS

General Knowledge : General Science QUESTIONS AND ANSWERS :: part3 : 21 to 25

Following General Knowledge Multiple choice objective type questions and answers will help you in TRB, SSC and UPSC 2014 examinations :

21.Carbon tetrachloride fire extinguisher should not be used in closed rooms, because it produces a poisonous gas called

carbon monoxide

phosphine

phosgene

None of these

22.Epoxy resins are used as

moth repellants

isecticides

detergents

adhesives

23.The hydrogenation of the vegetables oils takes place in the presence of finely divided

aluminium

charcoal

silica

nickel

24.Fish plates in railway track are used

to join two coaches

to connect two rails

to guide the wheels of coach

Both (B) and (C) above

25.Chemical change does not take place in case of

souring of milk into curd

risting of iron in atmosphere

burning of magnesium ribbon in air

emitting of light by a red hot platinum wire

More General Science QUESTIONS AND ANSWERS available in next pages

Health is the greatest gift, contentment is the greatest wealth -Buddha

Opportunity is missed by most people because it is dressed in overalls and looks like work.- Thomas Edison

Related Online Test