Which of the following nitrogen oxides is neutral in character?
A.N2O4
B.N2O5
C.N2O
D.N2O3
Category: Chemical Engineering Mcqs
Solvent used in extractive distillation
A.alters the relative volatility of the original components
B.is of low volatility
C.must form no azeotrope with the original substances
D.all of these answers
The chemical formula of monoammonium phosphate is
A.NH4HPO4
B.NH4H2PO4
C.NH4H2HPO4
D.(NH4)2HPO4
In wet process (strong sulphuric acid leaching for the manufacture of orthophosphoric acid a by-product obtained is
A.CaSO4.1
B.CaSO4.2H2O
C.CaSO4.
D.CaSO4
The carbon content is steel varies from
A.0.1 to 1.50%
B.0.35 to 2.5%
C.2 to 4%
D.5 to 8%
H2S from petroleum refinery streams is recovered by scrubbing with
A.ethanol
B.ethabol amines
C.water
D.98.5% H2SO4
Ice is slippery when a man walks on it for
A.Its surface is smooth
B.There is no friction
C.It is very chill
D.Increase of pressure causes it to melt
E.It has lubricating qualities
Pressure at a point in a static mass of liquid
A.depends upon specific weight of liquid and depth below the free liquid survace
B.depends upon the shape of the boundary container
C.depends upon the size of the boundary container
D.is the same for all liquids.
If the cocentration of ethane were 3.2% (lower limit of flammability)M-S-A Explosivemeter would read
A.100%
B.50%
C.3.20%
D.32%
Which of the following products contains minimum sulphur?
A.Naphtha
B.Kerosine
C.High speed diesel oil
D.Furnace oil
