What are the charges of Proton, Electron, and Neutron respectively...? Mcqs

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What are the charges of Proton, Electron, and Neutron respectively...?

(A) Negative, Positive, Neutral
(B) Neutral, Negative, Positive

(C) Positive, Negative, Neutral
(D) Neutral, Positive, Negative

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When sound travels through air, the air particles _____...?

(A) Vibrate along the direction of wave propagation
(B) Vibrate perpendicular to the direction of wave propagation

(C) Vibrate but not in any fixed direction
(D) Vibrate and move in a straight line

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Liver uses which vitamin for creating new Red Blood cells...?

(A) B12
(B) B6

(C) A
(D) K

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In an atom, the nucleus when compared to the extra-nuclear part, is _____...?

(A) More significant in volume and heavier in mass
(B) Smaller in volume and lighter in mass

(C) Smaller in volume but heavier in mass
(D) More significant in volume but lighter in mass

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Which of the following is responsible for largest amount of oxygen on earth...?

(A) Peat bogs
(B) Algae

(C) Trees
(D) None of these

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Which Part of Human Eye can be donated...?

(A) Conjunctiva
(B) Iris

(C) Pupil
(D) Cornea

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Persistance of vision is the principle behind...?

(A) Camera
(B) Spectroscope

(C) Cinema
(D) Periscope

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Endothermic reactions are those in which ________....?

(A) Heat is evolved
(B) Heat is absorbed

(C) Temperature increases
(D) Light is produced

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Another name for the diaphragm of microscope is...?

(A) Retina
(B) Pupil

(C) Cornea
(D) Iris

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An example of true solution is ______...?

(A) Solution of starch
(B) Solution of soap

(C) Ink in water
(D) Tooth paste

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