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Stoichiometry

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

14
28
1.25
2.5

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Stoichiometry
Size range of the colloidals particles is

10 - 50 Angstrom
500 - 1000 microns
5 - 200 milli-microns
50 - 200 microns

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Stoichiometry
Heat of __________ of a fuel is called its calorific value.

Vaporisation
Reaction
Combustion
Formation

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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
Elevation in boiling point in the ratio of their molecular weights
Different elevation in boiling point
Same elevation in boiling point

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Stoichiometry
A gas at 0°C is cooled at constant pressure until its volume becomes half the original volume. The temperature of the gas at this state will be

-273°C
-136.5°C
- 136.5°K
0°K

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Stoichiometry
The pH value of a solution is 5.9. If the hydrogen ion concentration is decreased hundred times, the solution will be

Of the same acidity
Basic
Neutral
More acidic

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