The permanent hardness of water is due to presence ______...? Mcqs

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The permanent hardness of water is due to presence ______...?

(A) MgSO4
(B) Mg(HCO3)₂

(C) CA(HCO3)2
(D) All of these

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Law of conservation of momentum defines that the total momentum of a system of two bodies before and after collision ______...?

(A) Remains constant
(B) Retains more momentum

(C) Losses some momentum
(D) None of the above is true

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The Sun is at an average distance of about________ million kilometers away from Earth...?

(A) 100 million
(B) 150 million

(C) 200 million
(D) 250 million

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The hormone which is clinically used as a bronchodilator and heart stimulant is:...?

(A) Epinephrine
(B) Norepinephrine

(C) Calcitonin
(D) Thyroxine

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Who is the founder of solar system...?

(A) Copernicus
(B) Newton

(C) Galileo
(D) Kepler

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Which of the following regulates the Metabolism Of Sugar...?

(A) Thyroid
(B) Insulin

(C) Glucose
(D) None of These

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The abrasives are ______...?

(A) Water
(B) Water insoluble minerals

(C) Water semi soluble minerals
(D) Water absorving minerals

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The world's most consumed drink, after water is made from ____ plant....?

(A) Camellia sinensis
(B) Coffee arabica

(C) Punica granatum
(D) Mangifera indica

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What charge card, developed in 1950, was the first to be accepted nationally in the US...?

(A) Visa
(B) Discover

(C) MasterCharge
(D) Diner’s Club

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Which of the following is/are characteristics of amphibians...?

(A) Lives on/in land/water
(B) Cold-blooded

(C) Moist skin
(D) Both A and B

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