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Chemistry

Chemistry
Piped Natural Gas (PNG) is used for

Anaesthesia
Mining
Cooking
Welding

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Chemistry
Limestone is a raw material used by which industry?

Fertilizers
Petrochemicals
Aluminium
Cement

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Chemistry
The residue left after extracting juice from sugarbeet and sugarcane is called

Bagasse
Molasses
Biomass
Whey

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Chemistry
The green colour seen in firework displays is due to the chloride salt of :

Strontium
Calcium
Sodium
Barium

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Chemistry
Which halide is used in making sensitive emulsion on photograhic film?

Sodium chloride
Silver chloride
Silver iodide
Silver bromide

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Chemistry
Soap helps in better cleaning of clothes because

It reduces the surface tension of solution
It gives strength to solution
Soap acts like catalyst
It absorbs the dirt

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