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Chemistry

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

18
6
12
Zero

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Chemistry
Inert gases are

Chemically very active
Miscible with water
Not stable
Chemically unreactive

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Chemistry
Water can be separated from alcohol water mixture by

Distillation
Evaporation
Sublimation
Decantation

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Chemistry
"Paramagnetism" is the property of

Completely vacant electronic subshells
Completely filled electronics subshells
Unpaired electrons
Paired electrons

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Chemistry
Which of the following is a metallic ore ?

Quartz
Feldspar
Galena
Mica

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Chemistry
The manufacture of iron from iron ore involves the process of

Oxidation
Reduction
Fractional distillation
Electrolysis

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MORE MCQ ON Chemistry

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