Identify the gas evolved and give the chemical test

Compounds (10)

Identify the gas evolved and give the chemical test in each of the following cases:

  1. Dilute hydrochloric acid reacts with sodium sulphite.
  2. Dilute hydrochloric acid reacts with iron (II) sulphide.

Answer

  1. The gas evolved turns orange potassium dichromate paper green.
  2. The gas evolved turns moist lead acetate paper silvery black.

 

  • Exam Year: 2016