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Chemistry

Chemistry
A mixture of water and alcohol can be separated by

Distillation
Filtration
Evaporation
Decantation

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Chemistry
Which of the following processes is used for the production of Biodiesel ?

Transamination
Transesterification
Translation
Transcription

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Chemistry
Gold dissolves in

Nitric acid
Aqua-regia
Hydrochloric acid
Acetic acid

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Chemistry
Sulphur dioxide level in the atmosphere can be reduced by using

Catalytic converters in industry
Static electricity to attract it in factory chimneys
Low - sulphur fuels
More efficient car engines

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Chemistry
Candle is a mixture of

Higher fatty acids and stearic acid
Paraffin was and stearic acid
Bees wax and paraffin wax
Bees wax and stearic acid

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Chemistry
When lime juice is dropped on baking soda, brisk effervescence takes place because the gas evolved is

Hydrogen
Carbon dioxide
Oxygen
All of them

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