When water is filled in a bottle and is allowed to freeze, the bottle breaks because...? Mcqs

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When water is filled in a bottle and is allowed to freeze, the bottle breaks because...?

(A) Water expands on freezing
(B) Bottle contracts at freezing point

(C) temperature outside the bottle is less than that inside the bottle.
(D) None of the above

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Sound travels about ___________times faster in water than in air....?

(A) 2
(B) 3

(C) 4
(D) 5

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The period of revolution of a geostationary satellite is...?

(A) 365 days
(B) 30 days

(C) 24 hours
(D) changing continuously

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The life cycle of the frog is...?

(A) Frogspawn→tadpoles→frog→froglet
(B) Frogspawn→froglet→frog→tadpoles

(C) Frogspawn→frog→tadpoles→froglet
(D) Frogspawn→tadpoles→froglet→frog

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Which one is a scalar quantity...?

(A) Time
(B) Force

(C) Velocity
(D) Acceleration

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Addition reaction is also known as ____...?

(A) Combination Reaction
(B) Synthesis Reaction

(C) Decomposition Reaction
(D) Both A and B

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The speed of sound is maximum in _____...?

(A) Gases
(B) Solids

(C) Liquids
(D) Plasma

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The atmosphere of moon consists of______________...?

(A) 90% Hydrogen, 10% Nitrogen
(B) 80%Nitrogen, 20% Hydrogen

(C) 60% Nitrogen, 40%inert gases
(D) None

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In an oscillating pendulum, the bob accelerates from its extreme position due to ______...?

(A) Inertia
(B) Tension in the string

(C) Wind
(D) Gravitational force

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Animal that eat the primary consumers are called...?

(A) Tertiary Consumers
(B) Secondary Consumers

(C) Primary Consumers
(D) None

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