Multiple choice

Hydrogen sulphide is a

  1. molecule

  2. atom

  3. mixture

  4. alloy

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Hydrogen sulfide (H2S) is a chemical compound consisting of two hydrogen atoms covalently bonded to a single sulfur atom, which forms a molecule. It is not a single atom, nor is it a mixture or an alloy because it has a fixed chemical composition.