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Chemistry

Chemistry
Stalactites and Stalagmites form due to the precipitation of :

CaCl2
MgCl2
MgCO3
CaCO3

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Chemistry
Which of the following metals causes Itai-Itai disease ?

Cobalt
Cadmium
Copper
Chromium

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Chemistry
Cloud is a colloidal dispersion of

Water drops in a dispersion medium of air
Mist in a dispersion medium of air
Air in a dispersion medium of water
Fog in a dispersion medium of water

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Chemistry
Baryllium Sulphate is less soluble in water due to

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

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Chemistry
Which one is the most reactive gaseous element

Bromine
Flourine
Iodine
Chlorine

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Chemistry
The molecular mass of a gas is

Half its vapour pressure
Equal to its vapour pressure
Not related to its vapour pressure
Twice its vapour pressure

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