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Chemistry

Chemistry
Which among the following is pure matter ?

Iron
Air
Brass
Carbon–dioxide

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Chemistry
The minimum energy required for an effective collision is

Free energy
Internal energy
Activation energy
Threshold energy

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Chemistry
Which of the following partial miscible liquid pairs has both lower and upper critical solution temperature

Aniline and n-hexane
Water and Phenol
Glycerine and m-toluene
Water and diethyl aniline

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Chemistry
Baryllium Sulphate is less soluble in water due to

Low Energy of dissociation
Lonic band
Low inflammable energy
High inflammable energy

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Chemistry
Which gas is used as fire extinguisher ?

Carbon suboxide
Carbon monoxide
Sulphur dioxide
Carbon dioxide

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Chemistry
Gelatin is mostly used in making ice–creams in order to

Stabilise the colloid and prevent crystallisation
Prevent making a colloid
Stabilise mixture
Enrich the aroma

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MORE MCQ ON Chemistry

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