Question

Bromine changes its colour from red to colourless with X. Again X has 3 carbon compound

with 6 hydrogen atoms. Write the changes involved and give another example of the same with 4 carbon

compound.​

Answer 1

The possibilities are two for the compound C₃H₆

One, it can be cyclo propane, and prop- 1 ene

Cyclopropane does not decolourise bromine solution

But propene will decolourise bromine solution, since it has an alkene

Like wise, the 4 carbon compound, C₄H₈, the possibilities are:

1. 2 methyl prop 1 ene

2. 2 butene

3. but - 1 ene

4. cyclo butane

But since only alkenes decolourise bromine solution, 1, 2 and 3 are the answers (I've bold them)

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