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Chemistry

Chemistry
Laughing gas is

Nitrogen trioxide
Nitric oxide
Nitrogen pentoxide
Nitrous oxide

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Chemistry
Which of the following is a method/process of disposing of solid waste which cannot be reused or recycled ?

All listed here
Incineration
Landfills
Pyrolysis and Gasification

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Chemistry
Cooking gas is a mixture of

Methane and ethylene
Butane and propane
Carbon dioxide and oxygen
Carbon monoxide and carbon dioxide

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Chemistry
Iron rusts quickly in

Sea water
River water
Rain water
Distilled water

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Chemistry
The mass number of an atom is equal to

the number of protons
the number of protons and electrons
the number of neutrons
the number of nucleons

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Chemistry
Nitrogen is an essential constituent of all :

Vitamins
Fats
Carbohydrates
Proteins

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MORE MCQ ON Chemistry

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