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Stoichiometry

Stoichiometry
If 1 Nm³ of O₂ contains 'N' number of molecules, then number of molecules in 2Nm³ of SO₂ will be

N
N/2
4N
2N

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Stoichiometry
Recycling in a chemical process facilitates

Increased yield
Enrichment of product
All of these
Heat conservation

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Stoichiometry
In the reaction, Ca + 2H₂O = Ca(OH)₂ + H₂ ; what volume (c.c.) of hydrogen at STP would be liberated, when 8 gm of calcium reacts with excess water? (atomic weight of calcium = 40)

0.4
2240
4480
1120

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Stoichiometry
Volume percent for gases is equal to the

Mole percent only for ideal gases
Weight percent only for ideal gases
Weight percent
Mole percent

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Stoichiometry
A gas mixture contains 6 moles of H₂ and 2 moles of N₂. If the total pressure of the gaseous mixture is 4 kgf/cm² ; then the partial pressure of N₂ in the mixture will be __________ kgf/cm² .

8
2
4
1

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Stoichiometry
CaCO₃ contains __________ percent of Ca by weight.

96
40
12
48

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