Question

Calculate the formal charge on chlorine atom in HClO4

Answer 1

Formal change on Cl=v-1/2S-L OR Cl=7-1/2(8)-0=3
formal change on the three oxygen atom which has an electron pair shared by chlorine is formal charge on 0=6-1/2(2)-6=-1
Formal change on the oxygen atom which has an electron pair shared by chlorine and another by the hydrogen is formal change on 
O=6-1/2(4)-0=-4
Formal change on the H=1-1/2(2)-0=0

Answer 2

Answer:

0

Explanation:

Formal change on Cl=v-1/2S-L OR Cl=7-1/2(8)-0=3

formal change on the three oxygen atom which has an electron pair shared by chlorine is formal charge on 0=6-1/2(2)-6=-1

Formal change on the oxygen atom which has an electron pair shared by chlorine and another by the hydrogen is formal change on 

O=6-1/2(4)-0=-4

Formal change on the H=1-1/2(2)-0=0