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

(A) n–butane (B) 2–methylbutane

(C) n-pentane (D) 2,2–dimethylpropane

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

3. 2 – Phenylpropene on acidic hydration gives

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

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

6. Presence of a nitro group in a benzene ring

7. Isopropyl bromide on Wurtz reaction gives

8. Tetrabromoethane on heating with Zn gives

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

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

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

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

13. Hydrocarbon containing following bond is most reactive

14. The coal tar fraction which contains phenol is:

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

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

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

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

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

20. The catalyst used in Friedel – Crafts reaction is