The chemical name of Laughing gas is___________...? Mcqs

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The chemical name of Laughing gas is___________...?

(A) Nitric oxide
(B) Nitrogen dioxide

(C) Nitrogen pentoxide
(D) Nitrous oxide

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Year is longest on : _____________...?

(A) Mercury
(B) Venus

(C) Mars
(D) The Earth

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Rusting of Iron involves_______________...?

(A) Reduction
(B) Oxidation

(C) Decomposition
(D) Displacement

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Which of the following is not a unit of pressure...?

(A) Pascal
(B) Bar

(C) Atmosphere
(D) Newton

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Select the mismatched one of the following...?

(A) Plantae → Pteridophyta
(B) Fungi → Mucor

(C) Protista → Paramecium
(D) Animalia → Amoeba

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Vitamin C is essential for ______...?

(A) Appetite
(B) Muscles

(C) Growth and repair of tissues
(D) None of these

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Which among the following lens is used to correct Presbyopia...?

(A) Convex
(B) Concave

(C) Bifocal
(D) Cylindrical

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RBCs are also called as_______...?

(A) Leucocytes
(B) Erythrocytes

(C) Nucleotides
(D) AOT

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Which of the following source of energy is caused by uneven heating of earth’s surface...?

(A) Wind
(B) Solar

(C) Biomass
(D) None of these

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Which is the renewable source of energy...?

(A) Solar and wind
(B) Coal

(C) Natural gas
(D) Petroleum

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