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Chemistry

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

Bauxite
Phosphorus
Sulphur
Graphite

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Chemistry
The number of g-molecule of oxygen in 6.02 x 1024CO molecules is

0.5 gram of molecule
5 gram of molecule
1 gram of molecule
10 gram of molecule

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

Transcription
Translation
Transamination
Transesterification

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Chemistry
Of the following, which one pollutes the air of a big city ?

Chromium
Copper
Lead
Cadmium

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Chemistry
Philosopher’s wool is chemically

Aluminium oxide
Magnesium oxide
Calcium oxide
Zinc oxide

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Chemistry
What is the product formed when sodium bicarbonate is heated strongly?

Sodium Peroxide
Sodium Monoxide
Sodium Hydroxide
Sodium Carbonate

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