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Chemistry

Chemistry
Lead pencil contains

Graphite
Lead
Lead sulphide
Ferrous sulphide

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Chemistry
Commercial Vaseline is derived from

Petroleum
Wool wax
Plant gums
Coal tar

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Chemistry
By which organic compound all the oils are known ?

Ester
Protein
Hydrocarbon
Carbohydrate

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

Transesterification
Translation
Transcription
Transamination

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Chemistry
If water smells bad, then that odour can be removed by adding

Bleach
Alum
Deactivated nitrogen
Activated carbon

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Chemistry
Galvanization of iron is carried out using

Tin
Chromium
Zinc
Copper

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