A change in physical appearance or state of a substance is called ____...? Mcqs

Latest MCQs

A change in physical appearance or state of a substance is called ____...?

(A) Chemical Change
(B) Physical Change

(C) Nuclear Change
(D) Biological Change

Latest MCQs

Which is used to remove dissolved physical and chemical impurities from water is called ____...?

(A) Distillation
(B) Chlorination

(C) Filtration
(D) Sedimentation

Latest MCQs

The speed of light in vacuum is about...?

(A) 300 Million meters per second
(B) 300 Million meters per hour

(C) 300 Million kilometers per second
(D) 300 Million kilometers per hour

Latest MCQs

The most dense and heaviest planet is___________...?

(A) Jupiter
(B) Earth

(C) Mars
(D) Venus

Latest MCQs

The time in which Earth completes its revolution around the Sun is________...?

(A) 365.25 days
(B) 340 days

(C) 325 days
(D) 360 days

Latest MCQs

Which law states that the rate of the effusion of a gas is inversely proportional to the square root of its density...?

(A) Graham’s Law
(B) Gay-Lussac’s law

(C) Boyle’s law
(D) None of these

Latest MCQs

The atmospheric greenhouse effect is produced mainly by the __________________...?

(A) Absorption and re-emission of visible light by the atmosphere
(B) Absorption and re-emission of ultraviolet radiation by the atmosphere

(C) Absorption and re-emission of infrared radiation by the atmosphere
(D) Absorption and re-emission of visible light by clouds

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The cathode ray carry ______...?

(A) Positive charge
(B) Neutral

(C) Negative charge
(D) Positrons

Latest MCQs

The Molecule consist of two atoms is _____...?

(A) Monoatomic molecule
(B) Polyatomic molecule

(C) Hetero atomic molecule
(D) Di atomic molecule

Latest MCQs

In which of the following, speed of the sound is maximum...?

(A) Gold
(B) Sea water

(C) Air
(D) Space

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