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Stoichiometry

Stoichiometry
Solutions having the same osmotic pressure are called __________ solutions.

Ideal
Isotonic
Dilute
Saturated

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Stoichiometry
A very dilute solution is prepared by dissolving 'x1' mole of solute in 'x2' mole of a solvent. The mole fraction of solute is approximately equal to

1/x2
X1/x2
X2/x1
1 - (x1/x2)

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Stoichiometry
Which of the following is an exothermic reaction?

Conversion of graphite to diamond
None of these
Decomposition of water
Dehydrogenation of ethane to ethylene

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Stoichiometry
The vapor pressures of benzene and toluene are 3 and 4/3 atmospheres respectively. A liquid feed of 0.4 moles of benzene and 0.6 moles of toluene is vapourised. Assuming that the products are in equilibrium, the vapor phase mole fraction of benzene is

0.6
0.2
0.4
0.8

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Stoichiometry
Osmotic pressure exerted by a solution prepared by dissolving one gram mole of a solute in 22.4 litres of a solvent at 0°C will be __________ atmosphere.

1.5
0.5
1
2

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Stoichiometry
The vapour pressure of a solution (made by dissolving a solute in a solvent) is __________ that of the pure solvent.

Either more or less; depends on the solvent
Equal to
Less than
More than

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