Question

Name the following radicals and give their valencies :
1. $S{O}_4$
2. $C{O}_3$
3. $OH$
4. $C{r}_2{O}_7$

Answer 1

$Radicals$ $Valency$

(i) Sulphate $\left(S{O}_4\right)$ 2

(ii) Carbonate $\left(C{O}_3\right)$ 2

(iii) Hydroxide $\left(OH\right)$ 1

(iv) Dichromate $\left(C{r}_2{O}_7\right)$ 2