A colourless gas with a pungent smell is evolved when dilute hydrochloric acid is added to a sample of a salt. The gas evolved could turn

Assessment: WAEC SSCE - Chemistry - 2022 (Objective) Subject: Chemistry

Question 1 Report

A colourless gas with a pungent smell is evolved when dilute hydrochloric acid is added to a sample of a salt. The gas evolved could turn
Answer Details
If the potassium manganate(VII) solution is acidified with dilute sulfuric acid, the purple solution becomes colourless.
Read lesson note on Periodic Chemistry (Ghana Only) (WAEC)
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