EXERCISES

Give a brief description of the principles of distillation techniques taking an example.

 Give a brief description of the principles of chromatography taking an example.

Differentiate between the principle of estimation of nitrogen in an organic compound by

 Kjeldahl’s method.

In the organic compound ${\mathrm{CH}}_2=\mathrm{CH}–{\mathrm{CH}}_2–{\mathrm{CH}}_2–\mathrm{C}\equiv \mathrm{CH}$, the pair of hybridised orbitals involved in the formation of ${\mathrm{C}}_2–{\mathrm{C}}_3$ bond is:
 

In the Lassaigne’s test for nitrogen in an organic compound, the Prussian blue colour is obtained due to the formation of

Which of the following carbocation is most stable?

The best and latest technique for isolation, purification and separation of organic compounds is:

The reaction: ${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{I}+\mathrm{KOH}\left(\mathrm{aq}\right)\to {\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{OH}+\mathrm{KI}$ is classified as: