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Chemistry

Chemistry
In a period from Li to F, ionisation potential

Decreases
Cannot be predicted
Increases
Remains same

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Chemistry
The function of sedimentation tank in sewage treatment is to:

Aerate the sewage
Remove suspended solids
Disinfect the sewage
Remove water content

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Chemistry
Catalyst is a substance which

None of these
Has no action on the rate of the reaction
Increases the rate of the reaction
Decreases the rate of reaction

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

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

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Chemistry
Which one of the following is an example of a gel ?

Shaving cream
Milk
Face cream
Cheese

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Chemistry
Which of the following is not a nitrogenous fetiliser?

Ammonium nitrate
Superphosphate
Ammonium sulphate
Urea

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