Q. Which of the following is responsible for acid rain?
1) Nitrogen oxide and Carbon dioxide
2) Nitrogen oxide and Carbon monoxide
3) Sulphur dioxide and Nitrogen oxiede
4) None of the above
Q. By which of the following can petrol fire be extinguished?
1) Sand
2) Water
3) Carbon dioxide
4) Saw dust
Q. In view of environmental Problems, the use of which insecticide has been reduced?
1) Gammexane
2) D.D.T.
3) B.H.C.
4) D.M.T.
Q. The main constituent of biogas is -
1) Hydrogen
2) Methane
3) Butane
4) Acetylene
Q. Ink is prepared from -
1) Dye
2) Tannin
3) Starch
4) Latex
Q. CaC2 on treatment with water gives -
1) Methane
2) Ethane
3) Ethylene
4) Acetylene
Q. Vinegar, very commonly used in Chinese food is actually -
1) Ethyl alcohol
2) Folic Acid
3) Acetic Acid
4) Nitric Acid
Q. Formic acid is a large component of -
1) Citrus Fruit
2) Ant Venom
3) Vinegar
4) Spirit
Q. Calcium is a constituent element of -
1) Marble
2) Silicon
3) Dry Ice
4) Cooking Soda
Q. The group of substances that can burn easily are -
1) paint thinner, coal, brick
2) coal, sand, alcohol
3) coal, alcohol, paper
4) brick, alcohol, coal
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