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Stoichiometry

Stoichiometry
The reverse process of fractional crystallisation is called

Stripping
Differential distillation
Absorption
Leaching

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Stoichiometry
Pure oxygen is mixed with air to produce an enriched air containing 50 volume % of oxygen. The ratio of moles of air to oxygen used is

0.58
0.2
0.5
1.72

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Stoichiometry
Applicability of Claussius-Clapeyron equation is subject to the condition that the

Volume in the liquid state is negligible
Both A & B
Vapor follows ideal gas law
Neither A nor B

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Stoichiometry
Which of the following expressions defines the Baume gravity scale for liquids lighter than water?

°Be = 145 - (145/G)
°Be = (140/G) - 130
°Be = 200(G-1)
°Be = (400/G) - 400

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Stoichiometry
Solution made by dissolving equimolar amounts of different solutes in the same amount of a given solvent will have the

None of these
Different elevation in boiling point
Same elevation in boiling point
Elevation in boiling point in the ratio of their molecular weights

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Stoichiometry
Kinetic theory of gases stipulates that, the

None of these
Absolute temperature is a measure of the kinetic energy of molecules
Energy is lost during molecular collisions
Molecules possess appreciable volume

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