Activity of enzymes can be enhanced by ____...? Mcqs

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Activity of enzymes can be enhanced by ____...?

(A) Activator
(B) Inhibitor

(C) Substrate
(D) Coenzyme

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Oil of vitriol is_________...?

(A) Nitric acid
(B) Hydrochloric acid

(C) Phosphoric acid
(D) Sulfuric acid

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Rain drops fall from great height Which among the following statements is true regarding it...?

(A) they fall with that ultimate velocity, which are different for different droplets
(B) they fall with same ultimate velocity

(C) their velocity increases and they fall with different velocity on the earth
(D) their velocity increases and they fall with same velocity on the earth

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Mouna Loa is an example of...?

(A) Active volcano
(B) Extinct volcano

(C) Plateau in volcanic region
(D) None of these

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Which of the following is an outcome if condensation...?

(A) Boiling
(B) Freezing

(C) Dew
(D) Moisture

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De Broglie extend the wave particle duality to electron in ______...?

(A) 1920
(B) 1922

(C) 1923
(D) 1925

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An egg sinks in soft water but floats in a concentrated solution of salt because...?

(A) egg absorbs salt from the solution and expands
(B) albumin dissolves in salt solution and egg becomes lighter

(C) the density of salt solution exceeds the density of eggs
(D) water has high surface tension

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Which among the following is not a secondary consumers...?

(A) Lion
(B) Dog

(C) Wolf
(D) Goat

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Which one of the following is not a fraction of crude oil...?

(A) Petroleum coke
(B) Ammonia

(C) Fuel oil
(D) Paraffin wax

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If there is no capillarity...?

(A) It would be impossible to use a kerosene lamp
(B) The blotting paper would fail to function

(C) There would have been no plants on earth
(D) All of above

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