Decreasing its temperature
Increasing the volume of the vessel containing the solution
Diluting the solution
None of these
✅ The correct answer is option D.
Chemical Engineering MCQs
Colligative properties of a dilute solution are those, which depend entirely upon the
Chemical composition of the solute
Constitution of the solute
Number of solute molecules contained in a given volume of the solvent
None of these
✅ The correct answer is option B.
Pick out the wrong unit conversion of calorific value.
1 kcal/kg = 1.8 BTU/lb = 4.186 kJ/kg
1 BTU/ft³ = 8.9 kcal/m³ = 0.038 MJ/m³
1 BTU/lb = 2.3 kcal/kg
1 kcal/m³ = 0.1124 BTU/ft³
✅ The correct answer is option C.
A reduction process is accompanied with increase in the
Number of electrons
Oxidation number
Both A & B
Neither A nor B
✅ The correct answer is option A.
Raoult’s law is not applicable to the
Solutes which dissociate or associate in the particular solution
Concentrated solutions
Both B & C
Solutions containing non-volatile solute
✅ The correct answer is option C.
1 gm mole of methane (CH₄) contains
6.02 x 1023 atoms of hydrogen
4 gm atoms of hydrogen
3.01 x 1023 molecules of methane
3 gms of carbon
✅ The correct answer is option B.
1 centipoise is equivalent to
1 gm/cm.second
1 centistoke
2.42 lb/ft.hr
2.42 lb/ft.second
✅ The correct answer is option C.
A solution with reasonably permanent pH is called a/an __________ solution.
Ideal
Non-ideal
Buffer
Colloidal
✅ The correct answer is option C.
If 1 Nm³ of O₂ contains ‘N’ number of molecules, then number of molecules in 2Nm³ of SO₂ will be
N
N/2
2N
4N
✅ The correct answer is option C.
What is the total pressure exerted by a mixture of 0.45 kg mole of benzene, 0.44 kg mole of toluene and 0.23 kg mole of o-xylene at 100°C, if their vapor pressures at 100°C are 1340, 560 and 210 mmHg respectively?
756.2
780.5
801.5
880.5
✅ The correct answer is option C.