Question

Derive a formula of a chemical compound containing only sodium and chlorine.

• A.
• B.
• C.
• D.

Answer 1

The correct option is A

When a compound consists of a metal and a non-metal, the name or symbol of metal is written first and in this case metal is Na and

Symbol : Na Cl

Valency(Charge, in this case): +1 -1

Hence, formula is NaCl.