Stoichiometry Mcqs for Chemical


Q.  Increasing the temperature of an aqueous solution will cause decrease in its________________?

a. Molality
b. Mole fraction
c. Weight percent
d. Molarity


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  6 gms of magnesium (atomic weight = 24), reacts with excess of an acid, the amount of H2 produced will be ______________ gm?
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MCQs:  With increase in the temperature of pure (distilled) water, its____________________?
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MCQs:  Addition of a non-volatile solute to a solvent produces a ______________ in its solvent?
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MCQs:  1 kg of calcium carbide (CaC2) produces about 0.41 kg of acetylene gas on treatment with water. How many hours of service can be derived from 1 kg of calcium carbide in an acetylene lamp burning 35 litres of gas at NTP per hour ?
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MCQs:  Heat capacity of air can be approximately expressed as, Cp = 26.693 + 7.365 x10-3 T, where, Cp is in J/mole.K and T is in K. The heat given off by 1 mole of air when cooled at atmospheric pressure from 500°C to – 100°C is ____________________?
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MCQs:  Size range of the colloids particles is __________________?
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MCQs:  The activity co-efficient of a solution, which accounts for the departure of liquid phase from ideal solution behaviour________________?
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MCQs:  Percentage saturation of a vapor bearing gas is always _____________ the relative saturation?
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MCQs:  The temperature at which the second Virial co-efficient of a real gas is zero is called the_____________________?
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MCQs:  Atoms of the same element, but of different masses are called__________________?
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MCQs:  The latent heat of vaporisation__________________?
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MCQs:  Atomic ______________ of an element is a whole number?
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MCQs:  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_________________?
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MCQs:  Vapor pressure of water at 100°C is about _______________ bar?
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MCQs:  With increase in temperature, the surface tension of water _____________________?
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MCQs:  An ideal gas can be liquefied, because ___________________?
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MCQs:  What fraction of the total pressure is exerted by oxygen, if equal weights of oxygen and methane are mixed in an empty vessel at 25°C ?
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MCQs:  Average molecular weight of air is about ____________________?
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MCQs:  If pH value of a solution is 8, then its pOH value will be ____________________?
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MCQs:  The equilibrium data of component A in the two phases B and C are given below. The estimate of Y for X = 4 by fitting a quadratic expression of a form Y = mX2 for the above data is ____________________?
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