What does "dehydration" mean...? Mcqs

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What does "dehydration" mean...?

(A) Addition of water
(B) Removal of water

(C) Conversion of water into vapor
(D) Absorption of water

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If pH value is greater than 7, then solution is ______...?

(A) Acidic
(B) Basic

(C) Amphoteric
(D) Neutral

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Saccharine is made up of __________...?

(A) Toluene
(B) Phenol

(C) Propane
(D) None of these

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The elements in ecosystem recycle through organisms with environment is called ____...?

(A) Food chain
(B) Food web

(C) Chemical cycle
(D) Biogeochemical

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Newton's law of gravitation is consistent with Newton's _________ law of motion....?

(A) 1st
(B) 2nd

(C) 3rd
(D) All of them

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Who said that light is made of corpuscles/particles...?

(A) Maxwell
(B) Einstein

(C) Newton
(D) Huygein

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Who created periodic table...?

(A) Faraday
(B) Lavoisier

(C) Arrhenius
(D) Mendeleev

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Which type of the following chemical reaction is CaO + CO2 → CaCO2:...?

(A) Combination Reaction
(B) Decomposition Reaction

(C) Neutralization Reaction
(D) None

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A Reflecting telescope consists of _____...?

(A) A primary lens and A secondary lens
(B) A primary lens and A secondary mirror

(C) A primary and A secondary mirror
(D) A primary mirror and A secondary lens

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What is ‘Tokamak’ ...?

(A) An Israeli radar system
(B) An American anti-missile system

(C) A defence collaboration between Japan and South Korea
(D) A device used in nuclear-fusion research for magnetic confinement of plasma

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