General Science QUESTIONS AND ANSWERS

General Knowledge : General Science QUESTIONS AND ANSWERS :: part2 : 86 to 90

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

86.The rate of chemical reaction does not depend upon

Concentration

Catalyst

Temperature

Pressure

87.The difference between a nuclear reactor and an atom bomb is that

no chain reaction takes place in nuckear reactor while in the atomic bomb there is a chain reaction.

no chain reaction takes place in atomic bomb while it takes place in a nuclear reactor.

the chain reaction in nuclear reactor is not controlled.

the chain reaction in nuclear reactor is controlled.

88.Which of the following metals can displace hydrogen from dilute acides ?

Zinc

Gold

Copper

Silver

89.The dark lines in the solar spectrum are due to

absorption of corresponding wavelengths by the prism used in the spectrograph.

destructive interference between waves of certain definite wavelengths.

absorption of corresponding wavelengths by the outer layers of the sun.

absence of corresponding wavelengths from the light emitted by teh core of the sun.

90.Which of the following substances undergoes chemical change on heating ?

Sodium chloride

Silica

Lead nitrate

Platinum wire

More General Science QUESTIONS AND ANSWERS available in next pages

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