Which salts are excessively dissolved to make temporary hard water...? Mcqs

Latest MCQs

Which salts are excessively dissolved to make temporary hard water...?

(A) CaSO4 and CaCl2
(B) KNO3 and KOH

(C) CaCO3 and Ca(OH)2
(D) Ca(HCO3)2 and Mg(HCO3)2

Latest MCQs

Sedimentary rocks are__________...?

(A) Porous
(B) Hard

(C) Rough
(D) Brittle

Latest MCQs

Plants are divided into how many main groups...?

(A) 3
(B) 4

(C) 2
(D) 1

Latest MCQs

1 Meter = _________ millimeters...?

(A) 10000 millimeters (mm)
(B) 10 millimeters (mm)

(C) 100 millimeters (mm)
(D) 1000 millimeters (mm)

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When white light is passed through a prism, it splits into ______ colors....?

(A) 7
(B) 8

(C) 2
(D) 4

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Layer of atmosphere which separates stratosphere and troposphere is known as...?

(A) Tropo-pause
(B) Mesopause

(C) Stratopause
(D) Thermopause

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Name the branch of science which deals with the study of sound and sound waves...?

(A) Aeronautics
(B) Acoustics

(C) Aerostatics
(D) Aetiology

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The Microbes used in baking industry is ________...?

(A) Penicillin
(B) Yeast

(C) Water
(D) None of these

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Basic metals can be converted into gold by ...?

(A) Heating
(B) Beating

(C) Artificial nuclear radioactivity
(D) Chemical reaction

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The muscles, tissues and blood all are made up of____________...?

(A) Carbohydrate
(B) Proteins

(C) Vitamins
(D) Fats

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