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Chemistry

Chemistry
The purest form of water is

Tap water
Ground water
Rain water
Distilled water

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Chemistry
Which of the following is a secondary pollutant ?

SO2
NO
PAN
CO

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Chemistry
Tar roads get damaged if there is

Heavy traffic
No sloping
Stagnation of water on road
No maintenance

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Chemistry
Number of hydrogen atoms in a Glucose molecule

6
14
8
12

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Chemistry
Philosopher’s wool is chemically

Calcium oxide
Magnesium oxide
Zinc oxide
Aluminium oxide

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

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

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