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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
The reverse process of fractional crystallisation is called

Stripping
Absorption
Leaching
Differential distillation

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Stoichiometry
For the gaseous phase reaction, N₂ + O₂ ⇋ 2NO, ΔH = + 80 kJ/kg. mole; the decomposition of NO is favoured by

Increasing the concentration of N₂
Increase in pressure
Decrease in temperature
Decrease in pressure

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Stoichiometry
An oxidation process is accompanied by decrease in the

All of these
Number of electrons
Number of ions
Oxidation number

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Stoichiometry
The heat evolved in the combustion of benzene is represented by the equation: C₆H₆ + 7.5 O₂ = 6CO₂ + 3H₂O, ΔH = 3264.6 kJ/kg. mole The heat energy change, when 39 gm of C₆H₆ is burnt in an open container, will be __________ kJ/kgmole.

-1632.3
+1632.3
+816.15
-2448.45

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Stoichiometry
pH value of an alkaline solution is

Constant over a wide range
< 7
7
> 7

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MORE MCQ ON Stoichiometry

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