How is propyne prepared from an alkyene dihalide?

Describe the mechanism of Nitration of benzene.

How does Huckel rule help to decide the aromatic character of a compound.

Suggest the route for the preparation of the following from benzene.
3 – chloro nitrobenzene

Write the chemical equations for combustion of propane.

Explain Markow nikoff's rule with suitable example.

What happens when ethylene is passed through cold dilute alkaline potassium permanganate.

Define benzenoid and non-benzenoid compounds with example.

How are branched alkanes formed from normal alkanes?

Identify A, Band C from the following equation 

List out the uses of alkenes.

List out the uses of alkynes.

Why benzene undergoes substitution reaction more readily than addition reaction?

Write a note on Ozonolysis of
i) Acetylene
ii) Propyne

(i) Which salt of carboxylic acid will be required to prepared ethane by sodalime decarboxylation? Give equation for the reation?
(ii) Sodium salt of which acid is required for the preparation of butane? Write chemical equation for the reaction.