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Chemistry

Chemistry
Piped Natural Gas (PNG) is used for

Mining
Welding
Anaesthesia
Cooking

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Chemistry
The natural source of hydro-carbon is

Crude oil
Biomass
Carbohydrates
Coal

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Chemistry
Which one of the following is not present in cement ?

Alum
Alumina
Gypsum
Clay

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Chemistry
An electric iron has a heating element made of :

Nichrome
Copper
Zinc
Tungsten

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Chemistry
In sugar solution,

Sugar is solvent, water is solute
Both are solvents
Sugar is solute, water is solvent
Both are solutes

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Chemistry
When a lead storage battery is discharged,

Lead sulphate is consumed
Lead is formed
SO2 is evolved
Sulphuric acid is consumed

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