Out of the following fractions of petroleum the one having the lowest boiling point is
kerosene oil
diesel oil
gasoline
heavy oil
Coordination number of Fe in the complexes [Fe(CN)6]4-, [FeCN)6]3- and [FeCl4]- would be respectively
6, 3, 4
6, 6, 4
2, 3, 3
6, 4, 6
The activation energy for a simple chemical reaction A → B is Ea in forward direction. They activation energy for reverse reaction
is negative of Ea
is always less than Ea
can be less than or more than Ea
is always double of Ea
When a biochemical reaction is carried out in laboratory from outside of human body in the absence of enzyme than rate of reaction obtained is 10-6 times, then activation energy of reaction in the presence of enzyme is
6/RT
P is required
different from Ea obtained in laboratory
cannot say anything
[-NH(CH2)6NHCO(CH2)4CO-]n is a
addition polymer
thermosetting polymer
homopolymer
copolymer
D.
copolymer
Copolymers are polymers in which the repeating structural units are derived from two or more monomer units.
Enzymes are made up of
edible proteins
proteins with specific structure
nitrogen contaning carbohydrates
carbohydrates
Methoxy methane and ethanol are
functional isomers
chain isomers
optical isomers
geometrical isomers