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CHEMISTRY

Chemistry
Stalactites and Stalagmites form due to the precipitation of :

CaCl2
MgCl2
CaCO3
MgCO3

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Chemistry
Which of the following is not a precious/semi-precious stone?

Ruby
Pearl
Sapphire
Emerald

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Chemistry
The chemical substance present in bones and teeth is

Calcium chloride
Calcium phosphate
Calcium borate
Calcium sulphate

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Chemistry
Baryllium Sulphate is less soluble in water due to

Lonic band
Low Energy of dissociation
Low inflammable energy
High inflammable energy

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Chemistry
Chile saltpeter is the common name of:

Sodium nitrate
Sodium nitrite
Potassium nitrate
Potassium nitrite

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