The sum of protons and neutrons in the nucleus of an atom is known as ____...? Mcqs

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The sum of protons and neutrons in the nucleus of an atom is known as ____...?

(A) Atomic Mass
(B) Mass Number

(C) Atomic Number
(D) Valance Number

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Carbon dioxide was discovered by_______...?

(A) Niels Bohr
(B) Amedeo Avogadro

(C) Joseph Black
(D) None of Above

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How long does it take for the moon to orbit the earth once...?

(A) 26.3 days
(B) 27.3 days

(C) 28.3 days
(D) 30.3 days

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The particles in Gas have the following movement...?

(A) Move randomly with unlimited space
(B) Move freely in any direction at long distances

(C) Both A and B
(D) None

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If an element B has five protons and six neutrons what will be the symbol of element B _____...?

(A) 115B
(B) 11B

(C) 115B
(D) None

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The scientific study of insects is known as _______...?

(A) Ichthyology
(B) Entomology

(C) Zoology
(D) Botany

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Enology is the study of____________...?

(A) Wine
(B) Digestion

(C) Kidneys
(D) None

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The Sun is a __________...?

(A) Star
(B) Planet

(C) Asteroid
(D) Meteor

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Soap and detergents remove the dirt from clothes due to__________...?

(A) Osmosis
(B) Capillary action

(C) Lowering of interfacial tension
(D) Diffusion

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Diamond is harder than Graphite because of___________...?

(A) Difference in crystalline Structure
(B) Tetrahedral structure of diamond

(C) Difference in layer of atoms
(D) None of these

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