Which of the following hydrocarbons has maximum octane number?
A.Benzene
B.Cyclohexane
C.Hexane
D.Iso-hexane
Category: Chemical Engineering Mcqs
Unit negative charge and negligible mass are the characteristics of
A.electrons
B.protons
C.neutrons
D.mesons
The relation PVY = constant holds only for those processes which are
A.isentropic
B.irreversible adiabatic
C.reversible polytropic
D.all of these asnwers
An azeotropic mixture of two liquids has boiling point lower than either of them when it
A.shows no deviation from Raoults law
B.shows positive deviation from Raoults law
C.shows negative deviation from Raoults law
D.is saturated
If the roof of a house is painted with a shiny metallic paint, the temperature inside will
A.Rise
B.Fall
C.Remain unchanged
D.Depends on other factors
E.None of the above
Transient heat flow occurs in
A.Electric conductors carrying current
B.Insulated pipes carrying superheated steam
C.Cooling of casting
D.Heating and cooling of buildings due to sun
E.Melting of ice
Plants manufacture carbohydrates from the carbon dioxide of the atmosphere by
A.oxidation
B.polymerization
C.condensation with water
D.a photochemical reaction
The solution will be alkaline when pH is
A.less than 7
B.equal to 7
C.greater than 7
D.less than or equal to 7
