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Chemistry

Chemistry
The monomer of polythene is

ethylene
None of these
vinyl chloride
ethyl alcohol

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Chemistry
The atomic number of carbon is 6 and its atomic mass is 12. How many are there protons in the nucleus of carbon ?

6
12
Zero
18

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Chemistry
Ruby and sapphire are oxides of

Tin
Iron
Aluminium
Copper

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Chemistry
Which is not an anasthetic agent in surgical operations?

Nitrous oxide
Ether
Chloroform
Acetone

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Chemistry
Coating of solid waste with impervious material is known as

Encapsulation
Landfill
Chemical fixation
Capping

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Chemistry
How many atoms of oxygen are in a glucose molecule

10
3
4
6

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