Page 97 - Chemistry - XII

4NaCl+ KCrO +3HSO → K SO +2CrOCl+ 2NaSO+3H O
2 2 7 2 4 2 4 2 2 2 4 2
CrOCl+ 4NaOH → NaCrO +2NaCl+2HO
2 2 2 4 2

Pb COOCH + NaCrO PbCrO +2CH COONa
3 2 4 4 3

CO 2−
3
2−
CO
3
2−
CO 3
2− 2−
SO SO
3 4

2−
CO
3

KCrO +3SO +H SO KSO+Cr SO +H O
2 2 7 2 2 4 2 4 2 4 3 2
green

BaCl +NaCO → BaCO+ 2NaCl
2 2 3 3

HS+O HO +S
2 2
(Colloidal)