1. The angle strain in cyclobutane is
2. The first fraction obtained during the fractionation of petroleum is:
3. 2 – Phenylpropene on acidic hydration gives
4. The coal tar fraction which contains phenol is:
5. Which one of these is not true for benzene?
6. The catalyst used in Friedel – Crafts reaction is
7. Alkyl halides react with dialkyl copper reagents to give?
8. The lowest alkene, that is capable of exhibiting geometrical isomerism is
9. Presence of a nitro group in a benzene ring