1. Nitrobenzene on reaction with conc. HNO₃/H₂SO₄ at 80 – 100°C forms which one of the following products?

2. The position of double bond in alkenes can be located by :

3. The lowest alkene, that is capable of exhibiting geometrical isomerism is

4. Arrange the following in decreasing order of their boiling points.

(A) n–butane (B) 2–methylbutane

(C) n-pentane (D) 2,2–dimethylpropane

5. The coal tar fraction which contains phenol is:

6. An organic compound has a triple bond and not double bond. It can be test by

7. When 2-butyne is treated with dil.H₂SO₄/HgSO₄, the product formed is

8. The compound C₃H₄ has a triple bond, which is indicated by its reaction with

9. Tetrabromoethane on heating with Zn gives

10. Presence of a nitro group in a benzene ring

11. The catalyst used in Friedel – Crafts reaction is

12. The first fraction obtained during the fractionation of petroleum is:

13. Arrange the following hydrogen halides in order of their decreasing reactivity with propane.

14. Alkyl halides react with dialkyl copper reagents to give?

15. Which one of these is not true for benzene?

16. Identify the compound A and B in the following reaction sequence

17. The increasing order of reduction of alkyl halides with zinc and dilute HCl is

18. Isopropyl bromide on Wurtz reaction gives

19. Hydrocarbon containing following bond is most reactive

20. 2 – Phenylpropene on acidic hydration gives