Mercury electrolytic cell produces
A.10-12% NaOH solution
B.50-70% NaOH solution
C.97-98.5% NaOH solution
D.20-25% NaOH solution
Category: Chemical Engineering Mcqs
McCabe ? Thiele method is used to find the number of theoretical stages required in a distillation operation. This method is based on the assumption(s) that
A.the liquid/vapour loading in each section of the tower remains constant
B.Troutons rule is applicable
C.the sensible heat differences are small because the temperature change from tray to tray is small
D.all of the above
The range of diffusivity of gases in cm2/sec at atmospheric pressure is
A.Less than 1
B.1
C.5 to 1
D.10 to 5
E.More than 10
Which of the following is/are used as antioxidant in gasoline?
A.Phenols
B.Alcohols
C.Halogenated hydrocarbons
D.Amyl nitrate
Kinematic viscosity indicates
A.momentum transport by molecular friction
B.heat energy transport through conduction
C.heat evergy transport through convection
D.conversion of momentum into heat energy
Which one of the following compounds is not used as fertilizer?
A.Urea
B.Dismmonium phosphate
C.Ammonium nitrate
D.Calcium phosphate
Carbon residue of an oil is determined
A.by conradson method only
B.by ramsbottom method only
C.either by conradson method or by ramsbottom method
D.by Pensky-Martens (closed) method
Which of the following is most suitable to measure a temperature of 2000?C?
A.Ordinary mercury-in-glass thermometer
B.Platinum resistance thermometer
C.Radiation pyrometer
D.Constant-volume hydrogen thermometer.
The principal raw material for the production of chlorine gas by mercury electrolytic cell is
A.saturated NaCI solution only
B.saturated NaCI solution with solid NaCI make-up
C.solid NaCI only
D.90-92% NaCI solution
The most important instrument for complete flue-gas analysis is the Orsat gas analyzer. The Orsat analyzes flue gases by the process of
A.adsorption
B.distillation
C.evaporation
D.absorption
