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Chemistry

Chemistry
The substance that is added to make natural rubber strong and more bouncy is

Sulphur
Polythene
Chlorine
Sponge

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Chemistry
The weight of 6.023 × 1022 atoms of carbon is

12 gms
0.12 gms
1.2 gms
120 gms

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Chemistry
Which of the following fuels causes minimum environmental pollution?

Coal
Hydrogen
Kerosene
Diesel

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Chemistry
The metals commonly used for electroplating are

Chromium, Copper and Nickel
Gold, Sodium and Potassium
Nickel, Lead and Chromium
Gold, Sodium and Chromium

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Chemistry
Which one of the following has greatest mass ?

Electron
Proton
Hydrogen nucleus
Neutron

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Chemistry
The important ore of aluminium is

Fluorspar
Haematite
Bauxite
Cryolite

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MORE MCQ ON Chemistry

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