Calculate the oxidation number of (i) Cr in CrO_(4)^(2-) (ii) C in HCO_(3)^(-) (iii) CI in CIO_(4)^(-) (iv)Cr in Cr_(2)O_(7)^(2-)

Calculate the oxidation number of (i) Cr in CrO_(4)^(2-) (ii) C in HCO

1.	Calculate the oxidation number of (i) Cr in CrO_(4)^(2-) (ii) C in HCO_(3)^(-) (iii) CI in CIO_(4)^(-) (iv)Cr in Cr_(2)O_(7)^(2-)
Answer» Answer :`(i)+6 (II)+5(III)+7(IV)+6`