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Chemistry

Chemistry
The resources which can be used continuously, year-after -year are called

Biotic
Abiotic
Renewable
Non-renewable

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Chemistry
Which of the following is used as a lubricant in heavy machines?

Phosphorus
Bauxite
Graphite
Sulphur

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Chemistry
The chemical name of rat poison is

Zinc phosphide
Potassium cyanide
Lead nitrate
Zinc oxide

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Chemistry
Haloarenes are more stable than haloalkanes due to

Hyper conjugative effect
Inductive effect
All of them
Resonance effect

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Chemistry
Emulsifier is an agent which

Aids the flocculation of emulsion
Stabilizes an emulsion
Accelerates the dispersion
Homogenizes the emulsion

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Chemistry
Which of the following chemicals is responsible for depletion of ozone layer in the atmosphere?

Carbon dioxide
Sulphur dioxide
Chlorofluorocarbons
Nitrous oxide

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