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Stoichiometry

Stoichiometry
For a reacation, X → Y, if the concentration of 'X' is tripled; the rate becomes nine times. The order of reaction is

3
1
2

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Stoichiometry
Pick out the wrong unit conversion of calorific value.

1 kcal/kg = 1.8 BTU/lb = 4.186 kJ/kg
1 BTU/ft³ = 8.9 kcal/m³ = 0.038 MJ/m³
1 kcal/m³ = 0.1124 BTU/ft³
1 BTU/lb = 2.3 kcal/kg

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Stoichiometry
How much O₂ can be obtained from 90 kg of water?

64 kg
80 kg
32 kg
90 kg

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Stoichiometry
pH value of a solution containing equal concentration of hydroxyl and hydrogen ions will be

14
10
7

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Stoichiometry
The depression in freezing point of a solution is

Neither A nor B
Directly proportional to the mole of solute
Both A & B
Inversely proportional to the mass of solvent

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Stoichiometry
Avogadro number is the number of molecules in one __________ of a gas.

Kilogram
Gram
Litre
Gm.mole

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