Question

In bleaching powder $\left(CaOC{l}_2\right)$, oxidation number of the two chlorine atoms are:

• A. $0,+1$
• B. $0,-1$
• C. $-1,+1$
• D. $-1,-2$

Answer 1

The correct option is C $-1,+1$

In bleaching powder, one chlorine atom is attached to oxygen. Its oxidation number is $+1$. Another chlorine atom is attached to the calcium atom. Its oxidation number is $-1$.

The structure of bleaching powder is shown in the image.

Hence, the correct option is $C$