Question

Select the correct answer from A, B, C and D.

1. Nitroso iron (II) sulphate
2. Iron (III) chloride
3. Chromium sulphate
4. Lead (II) chloride.

1. The compound which is responsible for the green colour formed when SO₂ is bubbled through acidified potassium dichromate solution.
2. Compound responsible for brown ring.

Answer 1

(a) C. Chromium sulphate

(b) A. Nitroso iron(II) sulphate