Question

6. What are polyatomic ions ? Give two examples.
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Answer 1

Answer:

The prefix poly- means "many," in Greek, but even ions of two atoms are commonly referred to as polyatomic. Examples: Carbonate (CO32-), sulphate (SO42-), nitrate - NO3- and hydroxide ions OH- are all polyatomic ions.

Explanation:

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Answer 2

Answer:

Polyatomic ions are ions which consist of more than one atom. For example, nitrate ion, NO3-, contains one nitrogen atom and three oxygen atoms. The atoms in a polyatomic ion are usually covalently bonded to one another, and therefore stay together as a single, charged unit.