A method which is used to separate coloured chemicals or substances, especially dyes is known as...? Mcqs

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A method which is used to separate coloured chemicals or substances, especially dyes is known as...?

(A) Filtration
(B) Sublimation

(C) Paper chromatography
(D) Distillation

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The process whereby energy is dissipated from the oscillating system is called__________...?

(A) Oscillation
(B) Damping

(C) Resonance
(D) None of these

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Lead ball falls through water more slowly than through air because __________...?

(A) The value of ‘g’ is less in water
(B) Density of air is less than that of water

(C) Of the viscous force in water
(D) Of The surface tension of water

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Which of these is a micronutrient of plants...?

(A) Oxygen
(B) Nitrogen

(C) Boron
(D) Carbon

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Substance used in match sticks ...?

(A) Sulphur
(B) Zinc

(C) Acid
(D) Phosphorus

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Another name of RDX is ___________...?

(A) Cyanohydrin
(B) Dextran

(C) Cyclohexane
(D) Cyclonite

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Coleoptile is a structure found in _____...?

(A) Maize Seed
(B) Bean Seed

(C) Both A and B
(D) None

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Lux is a unit of __________...?

(A) Luminous Flux
(B) Illumination

(C) Luminous Intensity
(D) Focus

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Approximate age of earth is ________...?

(A) 4.14 billion years
(B) 4.64 billion years

(C) 4.54 billion years
(D) 4.34 billion years

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A man-made object developed to accomplish a certain task in space ____...?

(A) Spacecraft
(B) Space Station

(C) Satellite
(D) Telescope

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