The hottest part of flame lies in its
A.blue zone
B.luminous zone
C.non-luminous zone
D.zone of unburnt gases
Category: Chemical Engineering Mcqs
All gases have approximately the same compressibility factor at the same
A.temperature and pressure
B.critical temperature and critical pressure
C.reduced temperature and reduced pressure
A paraffinic hydrocarbon liquid fuel has a C/H ration (by weight) of 5.1428. Its chemical formula is
A.C8H18
B.C7H16
C.C6H14
D.C2H12
Heat sensitive liquids are connected
A.By using insulated vessels
B.By using small quantities
C.By using deoxidisers
D.By using vacuum
E.By using low intensity heating
Which of the following has maximum specific gravity at 18?C?
A.98.5% H2SO4
B.20% oleum
C.40% oleum
D.65% eloum
The substance used as neutron moderator in nuclear reactors is
A.ordinary water
B.heavy water
C.liquid hydrogen
D.liquid ammonia
An alloy is
A.an intermetallic compound
B.a solid substance containing two or more metallic elements
C.a metallic material containing at least one metallic element
D.a metallic material containing at least one non-matallic element
The chemical formula of pyrophosphoric acid is
A.H4P2O7
B.H3PO4
C.HPO3
D.H3PO3
The SI unit of dynamic viscosity is
A.N.s/m2
B.N/m.s
C.m2/s
D.kg.s/m2
When a catalyst increases the rate of a chemical reaction, the volue of the rate constant
A.remains constant
B.increases
C.decreases with increase in the order of reaction
D.beomes infinite.
