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Chemistry

Chemistry
An electric iron has a heating element made of :

Nichrome
Zinc
Tungsten
Copper

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Chemistry
Colour imparted to the Bunsen flame by strontium salt is

Brick red
Bluish green
Apple-green
Crimson red

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Chemistry
Oxygen which is vital for life is a product of photosynthesis and comes from

Carbon dioxide
Carbonates from soil
Water
Oxides of mineral elements

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Chemistry
Colloids can be purified by

Condensation
Condensation
Dialysis
Condensation

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Chemistry
The element which is used for vulcanizing rubber

Bromine
Silicon
Sulphur
Phosphorus

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Chemistry
Which is the highest quality of hard coal?

Bituminous
Anthracite
Lignite
Peat

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MORE MCQ ON Chemistry

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