Question

distinguish between
sulphur dioxide and nitrogen dioxide (chemical test) ​

Answer 1

Explanation:

Chlorine [Cl₂]:

1. Moist litmus [blue] turns red and gets bleached,

2. Turns moist starch iodide paper blue black.

Nitrogen dioxide [NO₂]:

1. Turns blue litmus red.

2. Displaces 12 from KI and turns potassium iodide paper brown.