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Stoichiometry

Stoichiometry
A vapor that exists above its critical temperature is termed as a __________ vapor.

Gaseous
Unsaturated
Sub-cooled
Saturated

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Stoichiometry
If 1 Nm³ of O₂ contains 'N' number of molecules, then number of molecules in 2Nm³ of SO₂ will be

N/2
2N
4N
N

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Stoichiometry
In the reaction, Ca + 2H₂O = Ca(OH)₂ + H₂ ; what volume (c.c.) of hydrogen at STP would be liberated, when 8 gm of calcium reacts with excess water? (atomic weight of calcium = 40)

1120
2240
4480
0.4

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Stoichiometry
Sometimes, in chemical processes, a part of the outlet stream is rejected as waste in order to keep the impurity level in the system within limits. This phenomenon is termed as the

Bypassing
Recirculation
Purging
Recycling

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Stoichiometry
In case of a solution (not of a solid in a liquid), whose total volume is more than the sum of volumes of its components in their pure states, solubility is

Unchanged by the pressure change
Independent of the temperature
Increased with the increase in pressure
Decreased with the increase in pressure

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Stoichiometry
Addition of a non-volatile solute to a pure solvent

Decreases its freezing point
Both B and C
Increases its freezing point
Increases its boiling point

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