Addition reaction is also known as ____...? Mcqs

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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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Rainbow is formed due to ______...?

(A) Emission of light
(B) Absorption of light

(C) Refraction of light
(D) Transmission of sound

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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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In which stage of mitosis chromosomes get attached to spindle fibers formed by two the centrioles...?

(A) Metaphase
(B) Anaphase

(C) Telophase
(D) Prophase

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Which of the following gases do plants and trees give out during photosynthesis...?

(A) Hydrogen
(B) Nitrogen

(C) Oxygen
(D) Carbon dioxide

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Who invented the Lever...?

(A) Stephen Hawking
(B) Archimedes

(C) Marie Curie
(D) None

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Thermal energy transfer required to change a solid into liquid without changing its temperature is called...?

(A) Latent heat of Fusion
(B) Latent heat of vaporization

(C) Latent heat of boiling
(D) Specific heat capacity

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Bromine is a___________________...?

(A) black solid
(B) red-brown liquid

(C) colourless gas
(D) highly inflammable gas

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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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Vaccination can be administered ______...?

(A) After infection
(B) Before infection

(C) During infection
(D) All are Correct

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