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Stoichiometry

Stoichiometry
The atomic weight of helium is 4 times that of hydrogen. Its diffusion rate as compared to hydrogen will be __________ times.

√2
43832
4
43834

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Stoichiometry
Dissolving a solute in a solvent does not change its

Vapour pressure
None of these
Viscosity
Specific heat

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Stoichiometry
The hydroxyl ion (OH?) concentration in a solution having pH value 3 will be

10??

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Stoichiometry
2 litres of nitrogen at N.T.P. weighs __________ gms.

28
2.5
1.25
14

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Stoichiometry
One micron is equal to __________ cm.

44110
44108
44112
44106

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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

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

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