Question

In which of the following compounds, carbon exhibits a valency of $4$ but oxidation state $-2$ ?

• A. $C{H}_{3}Cl$
• B. $CHC{l}_3$
• C. $C{H}_{2}C{l}_2$
• D. $HCHO$

Answer 1

Answer: (A)

In $C{H}_{3}Cl$,
carbon exhibits a valency of $4$ but oxidation state $-2$.
$x+3-1=0$
$x+2=0$
$x=2$