General Science – 1 – 3

11. Air is a/an :

(a) compound
(b) element
(c) electrolyte
(d) mixture

ANSWER
Answer : (d)

EXPLANATION
No answer description available for this question. Let us discuss.

12. Production of chlorofluorocarbons (CFC) gas which is proposed to be banned in India, is used in which of the following domestic products ?

(a) Television
(b) Refrigerator
(c) Tube light
(d) Cooking gas

ANSWER
Answer : (b)

EXPLANATION
No answer description available for this question. Let us discuss.

13. Balloons are filled with :

(a) nitrogen
(b) helium
(c) oxygen
(d) argon

ANSWER
Answer : (b)

EXPLANATION
No answer description available for this question. Let us discuss.

14. Which metal pollute the air of a big city ?

(a) Copper
(b) Chromium
(c) Lead
(d) Cadmium

ANSWER
Answer : (c)

EXPLANATION
No answer description available for this question. Let us discuss.

15. Which of the following metals remain in liquid for under normal conditions ?

(a) Radium
(b) Zinc
(c) Uranium
(d) Mercury

ANSWER
Answer : (d)

EXPLANATION
No answer description available for this question. Let us discuss.


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