The color of KMnO4 is…………..
a) green
b) yellow
c) orange
d) purple
The purple color of an acidified solution of KMnO4decoloures when it is treated with…
a) alkane
b) alkene
c) alkyne
d) cyclokane
Which one of the following is a substitution reaction………….
a) halogenations of alkynes
b) halogenation of alkanes
c) halogenation of alkenes
d) oxidation of alkene
Halogenation of
methane in the presence of diffused sunlight occurs ……………….
a) quickly, only in one step
b) slowly, only in one step
c) in a series of four steps
d) quickly, in two steps
When one of the following decolourises Br2 water………
a) ethane
b) ethene
c) propane
d) methane
