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Chemistry

Chemistry
Petroleum is a mixture of

Salts
Elements
Polymers
Hydrocarbons

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Chemistry
The human body is made up of several chemical elements; the element present in the highest proportion (65%) in the body is

hydrogen
oxygen
carbon
nitrogen

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Chemistry
Two moles of an ideal gas expand freely into vacuum. The work done by the gas is

Infinity
4J
2J

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Chemistry
Mark the compound which possess ionic, covalent and coordinate bonds.

H2O
SO3
NH4Cl
SO2

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Chemistry
The nucleus of an atom consists of

All of these
electrons and neutrons
electrons and protons
protons and neutrons

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Chemistry
Alum is used as

A fertilizer
An analgesic
A disinfectant
A purifier for water

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MORE MCQ ON Chemistry

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