Which of the following is not a chemical reaction...? Mcqs

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Which of the following is not a chemical reaction...?

(A) Burning of a paper
(B) Conversion of Water into stream

(C) Digestion of food
(D) Burning of coal

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Chemical formula of baking soda is ______...?

(A) Na2CO3
(B) K2CIO3

(C) Na2SO4
(D) NaHCO3

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Which of the following metals is not only magnetic but also radioactive...?

(A) Thorium
(B) Aluminum

(C) Iron
(D) None of these

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Ascorbic acid is...?

(A) Vitamin A
(B) Vitamin C

(C) Vitamin D
(D) non of these

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What makes a lemon sour...?

(A) Tartaric acid
(B) Citric acid

(C) Acetic acid
(D) Hydrochloric acid

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The Third Most abundant element is:...?

(A) Oxygen
(B) Silicon

(C) Aluminium
(D) None ofthese

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

(A) Capillary action
(B) Osmosis

(C) Diffusion
(D) Lowering of interfacial tension

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The formula of Quartz is:...?

(A) SiO2
(B) Nacl

(C) SiO4
(D) None of these

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The process of emoving water in the form of vapour from theleaves is called:...?

(A) Nutrition
(B) Respiration

(C) Perspiratin
(D) Transpiration

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Another name for baking soda is:...?

(A) Sodium Bicarbonate
(B) Sodium Carbonate

(C) Sodium Sulphate
(D) Sodium Hydroxide

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