The S. I. unit of refractive index is _______...? Mcqs

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The S. I. unit of refractive index is _______...?

(A) meter
(B) cm

(C) watt
(D) no unit

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Which of the gas is not known as green house gas...?

(A) Methane
(B) Nitrous oxide

(C) Carbon dioxide
(D) Hydrogen

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Permanent hardness of water may be removed by the addition of___________...?

(A) Sodium Carbonate
(B) Alum

(C) Potassium Permanganate
(D) Lime

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Pedosphere is sum of_____________...?

(A) Organisms
(B) Soil and water

(C) Air
(D) All of above

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Which element is called earth maker...?

(A) Oxygen
(B) Silicon

(C) Carbon
(D) Hydrogen

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Cotyledons are very Important because they ________...?

(A) Store Food
(B) Store Water

(C) Store Air
(D) None of these

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An important ore of chromium is ___________...?

(A) Argon
(B) Chromite

(C) Mirage
(D) Diamond

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The metal that is used as a catalyst in the hydrogenation of oils is _______...?

(A) Ni
(B) Pb

(C) Cu
(D) Pt

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Tetanus is caused by____________...?

(A) Clostridium
(B) Virus

(C) Bacteriophage
(D) Salmonella

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What is the respiration equation in plants...?

(A) C6H12O6 + 6O2 → 6CO2 + 6H2O
(B) 6CO2 + 6H2O → C6H12O6 + 6O2

(C) 6CO2 + 6O2 → C6H12O6 + 6H2O
(D) 6H2O + 6O2 → C6H12O6 + 6CO2

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