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Chemistry

Chemistry
Highest percentage of carbon is found in which form of coal?

Anthracite
Lignite
Peat
Bituminous

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Chemistry
Which of the following acids serves as an electrolyte in a lead storage battery?

Sulphuric acid
Hydrochloric acid
Lactic acid
Nitric acid

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Chemistry
Which among the following is used to dilute oxygen in the gas cylinders used by divers ?

Argon
Krypton
Neon
Helium

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Chemistry
The influence of temperature on reaction rate is predicted by

Arrhenius equation
Kirchhoff's equation
Lewis equation
Van der Waals equation

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Chemistry
Drinking soda is

Neutral
Alkaline
Acidic
Oxidant

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Chemistry
Maximum permissible concentration of copper in drinking water in mg/L is

0.05
0.01
2
1

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