Among the properties (a) reducing (b) oxidising (c) complexing, the set of properties shown by CN^– ion towards metal species is :

The compound formed on heating chlorobenzene with chloral in the presence concentrated sulphuric acid is

On mixing ethyl acetate with aqueous sodium chloride, the composition of the resultant solution is

Which of the following undergoes reaction with 50% sodium hydroxide solution to give the corresponding alcohol and acid?