The particles of a solid ________...? Mcqs

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The particles of a solid ________...?

(A) Are widely spaced and move freely
(B) Are tightly packed together and stay in a fixed position

(C) Are loosely packed and move randomly
(D) Are sparse and vibrate at long distances

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The planet which is easily visible from the Earth is...?

(A) Mercury
(B) Venus

(C) Mars
(D) Jupiter

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A thermos flask keeps things close to their original temperature by reducing ____...?

(A) Conduction
(B) Convection

(C) Radiation
(D) All of these

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Which of the following phenomena occur when a small amount of acid is added to water...?

(A) Precipitation and Neutralization
(B) Evaporation and Condensation

(C) Sublimation and Deposition
(D) Dilution and Ionisation

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Atmospheric pressure decreases with the _______...?

(A) Increase in longitude
(B) Decrease in altitude

(C) Increase in altitude
(D) Increase in latitude

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The power of combining of an atom with other atoms to form molecules or compounds is called...?

(A) Atomic Mass
(B) Valency

(C) Electronegativity
(D) Ionization Energy

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Which gas is used for artificial ripening of green fruit ...?

(A) Carbon dioxide
(B) Acetylene

(C) Ethane
(D) Ethylene

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_____________ are positively (+) charged particles...?

(A) Neutrons
(B) Electrons

(C) Protons
(D) None of These

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What force is involved when we rub our hands together to warm them in winter and when we rub a matchstick to ignite it...?

(A) Gravity
(B) Friction

(C) Electromagnetism
(D) Inertia

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Air pollution is caused by...?

(A) Solid
(B) Liquid

(C) Gases
(D) All of these

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