Multiple choice

The salt used in some eco-friendly cleaning products is

  1. sodium silicate

  2. sodium sulphide

  3. sodium percarbonate

  4. potassium metabisulphite
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Sodium percarbonate is a chemical, an adduct of sodium carbonate and hydrogen peroxide (a perhydrate), with formula Na2CO3·1.5H2O2. It is a colorless, crystalline, hygroscopic and water-soluble solid. It is used in some eco-friendly cleaning products and as a laboratory source of anhydrous hydrogen peroxide.

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