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Chemistry

Chemistry
Stalactites and Stalagmites form due to the precipitation of :

MgCO3
MgCl2
CaCl2
CaCO3

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Chemistry
Freon' used as refrigerants is chemically

Fluorinated hydrocarbon
Chlorinated hydrocarbon
Chlorofluoro hydrocarbon
Fluorinated aromatic compound

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Chemistry
Aspirin is chemically known as

Alkylsalicylic acid
Methyl salicylate
Acetylsalicylic acid
Hydroxysalicylate

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Chemistry
Brass is a solution of molten copper in

Gaseous zinc
Solid zinc
Molten tin
Molten zinc

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Chemistry
Vulcanized rubber contains sulphur

3-5%
10-15%
7-9%
0.02

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Chemistry
Rectified spirit is :

Methylated spirit
95% ethyl alcohol
Tincture iodine
100% ethyl alcohol

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MORE MCQ ON Chemistry

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