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Chemistry

Chemistry
The mineral containing both magnesium and calcium is

calcite
dolomite
magnesite
carnallite

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Chemistry
The monomers of dacron are

Decane and decanol
Ethylene glycol and terephthalic acid
Ethylene glygol and phthalic acid
Decanone and decanol

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Chemistry
When iron rusts, its weight

First increases and then decreases
Decreases
Increases
Remains the same

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Chemistry
When a lead storage battery is discharged,

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

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Chemistry
Stalactites and Stalagmites form due to the precipitation of :

CaCO3
MgCO3
MgCl2
CaCl2

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Chemistry
The metal that is usually extracted from sea water is

Na
K
Ca
Mg

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MORE MCQ ON Chemistry

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