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Chemistry

Chemistry
Periodic table contains how many periods

8
6
10
7

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Chemistry
If lime water is kept in the air, it turns milky due to presence of :

Oxygen
Nitrogen
Sulphurdioxide
Carbondioxide

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Chemistry
Normal rainwater has a pH level of

8.3
5.6
6.3
3.2

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Chemistry
The purest form of water is

Distilled water
Ground water
Rain water
Tap water

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

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

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Chemistry
Milk is a colloidal system in which:

Fat is dispersed in water
Water is dispersed in fat
Fat is dissolved
Fat and water are dispersed in each other

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