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Stoichiometry

Stoichiometry
For a given mass of a gas at constant temperature, if the volume 'V' becomes three times, then the pressure 'P' will become

P/3
3P
9P
9P²

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Stoichiometry
What is the simplest formula of a compound containing 50% of element A (atomic weight = 10) and 50% of element B (atomic weight = 20)?

A₂B
AB₂
AB₃
A₂B₃

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Stoichiometry
The number of H⁺ in 1 c.c solution of pH 13 is

10¹³
6.023 x 10¹⁰
6.023 xl0¹³
6.023xl0⁷

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Stoichiometry
The pressure of 'V' litres of a dry gas is increased from 1 to 2 kgf/cm² at a constant temperature. The new volume will become

V/2
2V
V²
V/4

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Stoichiometry
The vapor pressure of a substance, at its melting point, is __________ in the solid state as compared to that in the liquid state.

Less
Same
Either A or B; depends on the nature of the substance
More

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Stoichiometry
N₂ content in a urea sample was found to be only 42%. What is the actual urea content of the sample ? (molecular weight of urea = 60)

0.95
0.8
0.9
0.98

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MORE MCQ ON Stoichiometry

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