Which statement is incorrect about gas molecules...? Mcqs

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Which statement is incorrect about gas molecules...?

(A) Molecules are widely separated
(B) Molecules have low attractive forces

(C) Molecules free to move in any direction
(D) Molecules collide with one another

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A radioactive nuclide emits a β-particle. The atomic number (proton number) of the nucleus number of ______...?

(A) Stays the same
(B) Decreases by 2

(C) Increases by 1
(D) Decreases by 4

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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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Phloem transport of sucrose can be described as going from “source to sink” which of the following would not normally function as a sink...?

(A) Mature leaf
(B) Storage organ

(C) Growing root
(D) Both B and C

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State of matter that has no fixed shape and no fixed volume is called...?

(A) Liquid
(B) Solid

(C) Gas
(D) None

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Liquid can be converted into solid by...?

(A) Heating
(B) Cooling

(C) Both A and B
(D) None

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What is the main composition of the sun...?

(A) Oxygen and Ammonia
(B) Hydrogen and Helium

(C) Hydrogen and Oxygen
(D) Methane and Hydrogen

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Solution of biological problem starts with ______...?

(A) Hypothesis
(B) Experimentation

(C) Conclusion
(D) Observation

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When white light is passed through a prism, it splits into __________ colours....?

(A) 5
(B) 6

(C) 7
(D) 8

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Lignite, bituminous & anthracite are different rank of _________ ...?

(A) Iron
(B) Coal

(C) Wood
(D) None of these

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