How many major gases have been used in re​frig​er​a​tors since its invention...? Mcqs

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How many major gases have been used in re​frig​er​a​tors since its invention...?

(A) 2
(B) 3

(C) 4
(D) 5

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Which of the following is not a primary colour ________....?

(A) Red
(B) Blue

(C) Green
(D) Yellow

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Digestion of food is completed in the __________...?

(A) small intestine
(B) large intestine

(C) stomach
(D) Liver

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What is the rank of the earth in the solar system in terms of size...?

(A) 5th
(B) 4th

(C) 3rd
(D) None of these

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All are postulates of cell theory except...?

(A) New cell is derived from pre-existing cells
(B) Cell does not contain the hereditary material

(C) All living organisms are made up of one or more cells
(D) Cell is the fundamental unit of life

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Which one of the following of glass can cut ultraviolet rays...?

(A) Jena Glass
(B) Soda Glass

(C) Pyrex Glass
(D) Crookes Glass

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Virus is__________...?

(A) unicellular
(B) multicellular

(C) acellular
(D) none of these

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Soap and detergents remove the dirt from clothes due to__________...?

(A) Osmosis
(B) Capillary action

(C) Lowering of interfacial tension
(D) Diffusion

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In bacteria mesosomes take the place of which one of the following...?

(A) Ribosome
(B) Mitochondria

(C) Golgi bodies
(D) None of these

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Which of the following use movable pulleys...?

(A) Water wells
(B) Flags

(C) Bicycles
(D) Cranes

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