Molarity of a solution which is prepared by dissolving 40g sodium chloride in 500cm^3 of solution is...? Mcqs

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Molarity of a solution which is prepared by dissolving 40g sodium chloride in 500cm^3 of solution is...?

(A) 1.4M
(B) 1.33M

(C) 1.33M
(D) 1.5M

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Which of the following is not the source of carbon dioxide emission...?

(A) Burning of fossil fuels, wood, cool
(B) Solar power

(C) Respiration
(D) Car exhaust smoke

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The reaction which releases or gives off heat is called...?

(A) Exothermic Reaction
(B) Endothermic Reaction

(C) Oxidation Reaction
(D) Neutralization Reaction

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According to kinetic molecular theory, the pressure exerted by a gas is caused by the _______...?

(A) Bombardment of the gas molecules on the walls of the container
(B) Collision between gas molecules

(C) Large distances between gas molecules
(D) Random motion of the gas molecules

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Rainbow is formed due to ______...?

(A) Emission of light
(B) Absorption of light

(C) Refraction of light
(D) Transmission of sound

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The study of distribution of different living organisms in different regions of the world is called...?

(A) Ecology
(B) Biogeography

(C) Zoogeography
(D) Biotechnology

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The second most abundant metal found in the earth’s crust is_____________...?

(A) Silicon
(B) Aluminium

(C) Calcium
(D) Sodium

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Human eye is how many Megapixels...?

(A) 1080 MP
(B) 720 MP

(C) 576 MP
(D) 570 MP

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The only source of energy on earth is ____...?

(A) Moon
(B) Star

(C) Water
(D) Sun

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NASA’s Mars rover, __________ , has been exploring Mars since 2012....?

(A) Diversity
(B) Serenity

(C) Curiosity
(D) Divinity

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