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General Science - Questions and Answers

Practice questions on General Science.

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516. Given below are two statements, labelled as Assertion (A) and Reason (R). In the context of the two statements, which of the following is correct ?Assertion (A) : Galvanised iron does not rust easily.Reason (R) : Zinc has oxidation potential.
A. Both A and R are true and R is the correct explanation of A.
B. Both A and R are true but R is not the correct explanation of A.
C. A is true but R is false.
D. A is false but R is true.
Explanation:
517. Which of the following chemicals in automobile exhaust can cause cancer ?
A. Oxides of nitrogen
B. Carbon monoxide
C. Polyclinic hydrocarbons
D. Lead
Explanation:
518. Given below are two statements, labelled as Assertion (A) and Reason (R). In the context of the two statements, which of the following is correct ?Assertion (A) : Hydrometer measures the concentraion of salt in a solution.Reason (R) : Hydrometer works on the principle of floating.
A. Both A and R are true and R is the correct explanation of A.
B. Both A and R are true but R is not the correct explanation of A.
C. A is true but R is false.
D. A is false but R is true.
Explanation:
519. Alcoholic beverages contain
A. methanal
B. methyl alcohol
C. butyl alcohol
D. ethyl alcohol
Explanation:
520. In a car, radiator and fan are used to cool the engine. The heat transfer modes involved are
A. conduction and convection
B. convenction and radiantion
C. conduction and radiation
D. conduction, convection and radiation
Explanation:
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