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Stoichiometry

Stoichiometry
pH value of a solution containing 1 gm of hydrogen ion per litre will be

10
7
1

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Stoichiometry
Air at a temperature of 20°C and 750 mm Hg pressure has a relative humidity of 80%. What is its percentage humidity?Vapour pressure of water at 20°C is 17.5 mm Hg.

79.62
78.51
80
80.38

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Stoichiometry
Heat of reaction is a function of the

Pressure
Neither (a) nor (b)
Temperature
Both(a)&(b)

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Stoichiometry
pH value of an alkaline solution is

7
> 7
Constant over a wide range
< 7

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Stoichiometry
A gas at 0°C was subjected to constant pressure cooling until its volume became half the original volume. The temperature of the gas at this stage will be

0°K
0°C
-136.5°K
-136.5°C

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Stoichiometry
If a solution of eutectic composition is cooled, __________ reaching the eutectic temperature.

It will not solidify even on
The solvent begins to freeze out even before
It will undergo no change until
None of these

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