Stoichiometry MCQ Questions & Answers

41

Internal energy is independent of the __________ for an ideal gas.

A) Pressure B) Volume C) Both A & B D) Neither A nor B

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Answer & Solution

Answer: Option C

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42

Viscosity of atmospheric air may be about __________ centipoise.

A) 0.015 B) 1.5 C) 15 D) 150

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Answer & Solution

Answer: Option A

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43

Solutions having the same osmotic pressure are called __________ solutions.

A) Dilute B) Ideal C) Isotonic D) Saturated

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Answer & Solution

Answer: Option C

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44

In general, the specific heats of aqueous solutions __________ with increase in the concentration of the solute.

A) Increase B) Decrease C) Remain unchanged D) None of these

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Answer & Solution

Answer: Option B

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45

Pick out the wrong conversion formula for the conversion of weight units :

A) 1 tonne = 1000 kg = 22.046 lbs B) 1 U.S. ton = 907 kg = 0.907 tonne = 0.893 ton C) 1 ton = 2240 lbs = 1016 kg = 1.016 tonnes = 1.12 U.S. tons D) None of these

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Answer & Solution

Answer: Option D

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46

The amount of Zn (atomic weight = 65) required to form 224 c.c. of H₂ at N.T.P. on treatment with dilute H₂SO₄ will be __________ gm.

A) 0.065 B) 0.65 C) 6.5 D) 65

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Answer & Solution

Answer: Option B

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47

With rise in temperature, the heat capacity of a substance

A) Increases B) Decreases C) Remains unchanged D) Either A or B; depends on the substance

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Answer & Solution

Answer: Option A

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48

Measurement of the amount of dry gas collected over water from volume of moist gas is based on the

A) Charle's law B) Dalton's law of partial pressures C) Avogadro's hypothesis D) Boyle's law

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Answer & Solution

Answer: Option B

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49

Pick out the wrong statement about the recycle stream in a process.

A) Recycling in a process stream helps in utilising the valuable reactants to the maximum with minimum loss of reactants B) The ratio of the quantity of a reactant present in the reactor feed of a recycling operation to the quantity of the same reactant entering the process as fresh feed is called combined feed ratio C) Recycling in a process does not help in getting higher extent of reaction D) Recycling is exemplified by refluxing back a part of the distillate to the distillation column to maintain the quantity of liquid within the column

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Answer & Solution

Answer: Option C

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50

In a chemical process, the recycle stream is purged for

A) Increasing the product yield B) Enriching the product C) Limiting the inerts D) Heat conservation

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Answer & Solution

Answer: Option C

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Stoichiometry MCQ Questions & Answers | Chemical Engineering