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Stoichiometry

Stoichiometry
For a neutral solution (pH = 7), the value of[H⁺] [OH⁻] is equal to

1
> 1
< 1

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Stoichiometry
Pick out the wrong unit conversion.

None of these
1 kPa = 100 bar
1 mm Hg = 1 torr = 133.3 Pa
1 atm. = 760 mm Hg = 29.92 inch Hg = 14.7 psi = 1.013 bar = 1.013 kgf/cm²

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Stoichiometry
If pH value of a solution is 8, then its pOH value will be

6
10
7
1

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Stoichiometry
The chemical nature of an element is independent of

The number of protons or electrons present in it
The number of neutrons present in it
Its atomic number
None of these

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Stoichiometry
In physical adsorption, as compared to chemisorption, the

Activation energy is very high
Quantity adsorbed per unit mass is higher
Rate of adsorption is controlled by the resistance to surface reaction
Heat of adsorption is very large

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Stoichiometry
Volume occupied by one gm mole of a gas at S.T.P. is

22.4 c.c
22400 litres
359 litres
22.4 litres

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