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Science MCQ Questions with answers

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Learn Science MCQs [Page 1 of Department 18]

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Ram Sharma • 178.08K Points
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1) Galvanization is the:

(A) deposition of aluminium on iron
(B) deposition of tin on iron
(C) deposition of copper on iron
(D) deposition of zinc on iron
Correct Answer - Option (D)

No Explanation found. Add Explanation and get +2 points.

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Ram Sharma • 178.08K Points
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2) If the radius of the Earth were to shrink by 1 per cent, its mass remaining the same, the value of g on the Earth's surface would

(A) Increase by 2%
(B) Decrease by 2%
(C) Decrease by 0.5%
(D) Increase by 0.5%
Correct Answer - Option (A)

No Explanation found. Add Explanation and get +2 points.

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Ram Sharma • 178.08K Points
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6) For Which among the given substances, the resistance decreases with rise in temperature

(A) Pure silicon
(B) Platinum
(C) Copper
(D) Nichrome
Correct Answer - Option (D)

No Explanation found. Add Explanation and get +2 points.

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Ram Sharma • 178.08K Points
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7)   If lime water is kept in the air, it turns milky due to presence of

(A) Sulphurdioxide
(B) Nitrogen
(C) Carbondioxide
(D) Oxygen
Correct Answer - Option (C)

No Explanation found. Add Explanation and get +2 points.

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Ram Sharma • 178.08K Points
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9) The BOD values of water indicate the

(A) amount of ozone used for biochemical oxidation
(B) amount of organic debris
(C) amount of oxygen used for biochemical oxidation
(D) amount of oxygen used for biochemical reduction
Correct Answer - Option (C)

No Explanation found. Add Explanation and get +2 points.

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Ram Sharma • 178.08K Points
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10) Which of the following one of the following does not contain Silver -

(A) Horn Silver
(B) German Silver
(C) Lunar Caustic
(D) Ruby Silver
Correct Answer - Option (B)

No Explanation found. Add Explanation and get +2 points.

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