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Latest MCQs

Which one of the following is not a advantage of friction...?

(A) Walking
(B) Breaking

(C) Securing knots
(D) Fasteners

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Latest MCQs

A saturated solution of KCl on heating becomes _______...?

(A) Unsaturated
(B) Supersaturated

(C) Diluted
(D) All of these

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Latest MCQs

Soap and detergents remove the dirt from clothes due to__________...?

(A) Osmosis
(B) Capillary action

(C) Lowering of interfacial tension
(D) Diffusion

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Latest MCQs

Which part of a bicycle dynamo spins to generate electricity...?

(A) Magnet
(B) Gear

(C) Axle
(D) Coils

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Latest MCQs

What is the name of the substance which gets dissolved...?

(A) Solute
(B) Solvent

(C) Solution
(D) Mixture

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Latest MCQs

Which of the following strongly supports the endosymbiont hypothesis of eukaryotic evolution...?

(A) Mitochondria and chloroplasts both have DNA
(B) Mitochondria is free living

(C) Both A and B
(D) None of the above

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Latest MCQs

Which pollutant from motor car exhaust causes mental disease _____...?

(A) Carbon dioxide
(B) Lead

(C) Sulpher Dioxide
(D) Mercury

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Latest MCQs

Which salts are excessively dissolved to make temporary hard water...?

(A) CaSO4 and CaCl2
(B) KNO3 and KOH

(C) CaCO3 and Ca(OH)2
(D) Ca(HCO3)2 and Mg(HCO3)2

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Latest MCQs

The critical velocity vc = ______...?

(A) gR
(B) g/R

(C) √gR
(D) √g/R

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Latest MCQs

Which one affects the speed of sound in the medium...?

(A) pressure
(B) humidity

(C) temperature
(D) all of the above

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