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

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

(A) n–butane (B) 2–methylbutane

(C) n-pentane (D) 2,2–dimethylpropane

3. 2 – Phenylpropene on acidic hydration gives

4. Tetrabromoethane on heating with Zn gives

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

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

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

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

9. Isopropyl bromide on Wurtz reaction gives

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

11. The coal tar fraction which contains phenol is:

12. The catalyst used in Friedel – Crafts reaction is

13. Hydrocarbon containing following bond is most reactive

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

15. Presence of a nitro group in a benzene ring

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

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

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

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

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