The carbon dioxide content in the air that we exhale is about...? Mcqs

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The carbon dioxide content in the air that we exhale is about...?

(A) 4%
(B) 9%

(C) 15%
(D) 16%

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The set of colours obtained in seven different colours components way is called...?

(A) Rainbow
(B) Spectrum of Light

(C) Dispersion
(D) Prism

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What are the reactants in the reaction: CH4 + 2O2 → CO2 + 2H2O...?

(A) Methane and Oxygen
(B) Carbon dioxide and Water

(C) Hydrogen and Oxygen
(D) Carbon and Water

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Period of rapid growth and development called...?

(A) Childhood
(B) Adult hood

(C) Adolescence
(D) Both A and B

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The tendency of the object to remain at rest or, if moving, to continue its uniform motion in a straight line is called...?

(A) Inertia
(B) Momentum

(C) Friction
(D) Gravity

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The alloy of aluminium used for making magnet is_________...?

(A) Duralumin
(B) Y-Alloy

(C) Alnico
(D) Aluminium bronze

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Penicillin is used to fight what type of infections...?

(A) Bacteria
(B) Viral

(C) Pneumonia
(D) Sepsis

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On the Moon, the escape velocity is: __________...?

(A) Less than on Earth due to its lower mass and smaller radius
(B) More than on Earth due to its smaller radius

(C) The same as on Earth because escape velocity is a constant
(D) Dependent on the time of day

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In a fission nuclear reaction , a heavy nucleus breaks up into smaller nuclei whereas in another nuclear reaction two or more than two possibly nuclei are fused to form a heavy nucleus This nuclear reaction is called ...?

(A) Chemical Reaction
(B) Nuclear reaction

(C) Fission nuclear reaction
(D) Fusion nuclear reaction

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How many rows and columns are in the modern Periodic Table...?

(A) 18 columns and 7 rows
(B) 12 columns and 9 rows

(C) 7 columns and 18 rows
(D) 25 columns and 15 rows

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