McqsFactory McqsFactory.com is the devoted website for multiple choice questions answers in Pakistan. McqsFactory has been specially designed to cover this paper for various such examinations. The material of McqsFactory has been collected after going through different examination papers.
A. Sublimation
B. Melting
C. Vaporisation
D. All of these
Answer
Answer
D. All of these
Submitted by: Rasool Bux
The viscosity of water at room temperature may be around one?
A. Centipoise
B. Poise
C. Stoke
D. Both B. & C.
Answer
Answer
A. Centipoise
Submitted by: Rasool Bux
_____chart is a graph related to Antoine equation ?
A. Ostwald
B. Cox
C. Mollier’s
D. Enthalpy-concentration
Answer
Answer
B. Cox
Submitted by: Rasool Bux
The atomic weight of helium is 4 times that of hydrogen. Its diffusion rate as compared to hydrogen will be _____times?
A. 1/2
B. 4
C. √2
D. 1/4
Answer
Answer
C. √2
Submitted by: Rasool Bux
If a solution of eutectic composition is cooled, ____reaching the eutectic temperature ?
A. The solvent begins to freeze out even before
B. It will undergo no change until
C. It will not solidify even on
D. None of these
Answer
Answer
B. It will undergo no change until
Submitted by: Rasool Bux
Atmospheric pressure corresponds to a hydrostatic head of?
A. 13.6 cms of Hg
B. 34 ft ofH2O
C. 1 meter of H2O
D. 13.6 meters of Hg
Answer
Answer
B. 34 ft ofH2O
Submitted by: Rasool Bux
On mixing 56 gm of CaO with 63 gm of HNO3, the amount of Ca(NO3)2 formed is ______________ gm?
A. 82
B. 164
C. 41
D. 8.2
Answer
Answer
A. 82
Submitted by: Rasool Bux
At a temperature of 0°K, the molecules of a gas have only ______energy?
A. Rotational
B. Vibrational
C. Translational
D. None of these
Answer
Answer
C. Translational
Submitted by: Rasool Bux
The molecules of a liquid which is in equilibrium with its vapor at its boiling point on an average have equal ___ in the two phases?
A. Potential energy
B. Intermolecular forces
C. Kinetic energy
D. Total energy
Answer
Answer
C. Kinetic energy
Submitted by: Rasool Bux
A butane isomerisation process produces 70 k.mole/hr of pure iso-butane. A purge stream removed continuously, contains 85% n-butane and 15% impurity (mole%). The feed stream is n-butane containing 1% impurity (mole%). The flow rate of the purge stream will be?
A. 3 kmole/hr
B. 4 kmole/hr
C. 5 kmole/hr
D. 6 kmole/hr
Answer
Answer
C. 5 kmole/hr
Submitted by: Rasool Bux