Rate of reaction will increase when temperature ______...? Mcqs

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Rate of reaction will increase when temperature ______...?

(A) Increases
(B) Decreases

(C) Below 10°C
(D) Both A and B

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The study of fish is known as ________...?

(A) Entomology
(B) Ichthyology

(C) Ecology
(D) None of these

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Who invented steamboat...?

(A) James Watt
(B) Robert Fluton

(C) Frank Whittle
(D) George Stephenson

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Binocular work on the principle of which one of the following...?

(A) Refraction of Light
(B) Diffraction of Light

(C) Total Internal Reflection of Light
(D) Transmission of Sound

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The speed of sound in aluminium is _____...?

(A) 5620 m/s
(B) 6420 m/s

(C) 7220 m/s
(D) 4820 m/s

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Which of the following pairs belong to the category of cold blooded animals...?

(A) Snakes and birds
(B) Bat and rats

(C) Frog and snakes
(D) Birds and monkey

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

(A) Activator
(B) Inhibitor

(C) Substrate
(D) Coenzyme

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Barnacles growing on the back of whale is an example for ________________...?

(A) mutualism
(B) parasitism

(C) amensalism
(D) commensalism

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Approximate age of milky-way is ________...?

(A) 16.5 billion years
(B) 15.5 billion years

(C) 13.5 billion years
(D) 14.5 billion years

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The atmospheric greenhouse effect is produced mainly by the __________________...?

(A) Absorption and re-emission of visible light by the atmosphere
(B) Absorption and re-emission of ultraviolet radiation by the atmosphere

(C) Absorption and re-emission of infrared radiation by the atmosphere
(D) Absorption and re-emission of visible light by clouds

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