The chemical name of quartz is:...? Mcqs

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The chemical name of quartz is:...?

(A) Silicon Dioxide
(B) Stannous Oxide

(C) Aluminium Oxide
(D) None

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What is the name of the gas used in an air conditioner...?

(A) Ammonia
(B) Nitrous oxide

(C) Freon
(D) CO2

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which is the second brightest star in the Universe...?

(A) Betelgeuse
(B) Vega

(C) Canopus
(D) None of these

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Living organisms which derive their food from dead and decaying organic materials called...?

(A) Saprotrophs
(B) Parasites

(C) Predators
(D) Producers

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If a rocket is launched with a velocity less than the escape velocity of Earth, it will:...?

(A) Escape the Earth’s gravitational field
(B) Enter into an elliptical orbit around the Earth

(C) Fall back to Earth
(D) Travel to another planet

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The volume of Blood in a Human body to be approximately _________ of body weight...?

(A) 6%
(B) 7%

(C) 8%
(D) 9%

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Unit of specific gravity is...?

(A) Pascal
(B) No unit

(C) Mass/volume
(D) None of these

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What is the third most common gas found in the air we breathe ________ ...?

(A) Hydrogen
(B) Neon

(C) Carbondioxide
(D) Argon

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The oldest barrage on the river Indus at Sukkur was built in_____...?

(A) 1932
(B) 1940

(C) 1930
(D) 1928

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Snail belongs to which of the following phylum...?

(A) Annelida
(B) Arthropoda

(C) Mollusca
(D) Echinodermata

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