Order the steps to a coloured azo dye

Exercise and reference answers

Steps

1. Nitrate benzene to nitrobenzene
2. Reduce it to aniline
3. Cool the aniline to 273 K
4. Add nitrous acid to diazotise
5. Couple the salt with phenol
6. Collect the coloured dye

Instructions

Tap the steps in the order the work is done.

Explanation