Question

Which of the following is the correct formula of hydrogen chloride?

• A. $HC{l}_2$
• B. $H_{2}Cl$
• C. $HCl$
• D. $H_{2}C{l}_2$

Answer 1

The correct option is C

$HCl$

Write the valency of the symbol.

$H^{+1}$ $C{l}^{-1}$

Interchanging the valency

$1H^{+2}$ $1C{l}^{-1}$

Write interchanged number at the base

$H{}_1$ $C{l}_1$

Write the formula of the compound

$HCl$