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Chemistry

Chemistry
When formaldehyde and potassium hydroxide are heated, we get

Methane
Methyl alcohol
Acetylene
Ethyl formate

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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 ?

18
Zero
6
12

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Chemistry
"Paramagnetism" is the property of

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

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Chemistry
Which gas emitted by power stations causes acid rain?

Helium
Carbon dioxide
Sulphur dioxide
Nitrogen

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Chemistry
Sodium bicarbonate is commercially known as

Soda lime
Baking soda
Washing soda
Caustic soda

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Chemistry
The antiseptic compound present in dettol is

Cresol
Iodine
Enloroxylenol
Biothional

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MORE MCQ ON Chemistry

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