Question

Underline/Select the word which does not belong to the group: sodium chloride, potassium chloride, hydrogen chloride, magnesium chloride.

Answer 1

Its answer is Magnesium Chloride
Because all other compounds form
NaCl, KCl and HCl
Whereas Magnesium Chloride has
Chemical formula MgCl2.


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Answer 2

The word which does not belong to the group out of sodium chloride, potassium chloride, hydrogen chloride, magnesium chloride is magnesium chloride.

It is because all other compounds are formed using a single atom but to form magnesium chloride, we need two atoms of magnesium and one atom of chlorine.