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Chemistry

Chemistry
Which of the following metals is not a pollutant ?

Lead
Aluminium
Arsenic
Mercury

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Chemistry
The National Chemical Laboratory (India) is located in

Bangaluru
Pune
Hyderabad
Mumbai

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Chemistry
The gas used to extinguish fire is

Nitrogen
Neon
Carbon monoxide
Carbon dioxide

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Chemistry
Which of the following is used in welding broken pieces of iron rails and machine parts?

None of these
Aluminium sulphate
Solder
Aluminium powder

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Chemistry
Quartz is a crystalline form of

Glass
Silica
Alumina
Limestone

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Chemistry
The presence of Cobalt in Vitamin B12 was established for the first time by

Sodium Nitroprusside test
Hydrolysis test
Borax-Bead test
Spectroscopy

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MORE MCQ ON Chemistry

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