chemistry class 10 chapter 15 in urdu medium | disadvantage of hard water | waqar ul hasan Academy

#10chemistry #hardness    • Chemistry class 10   chemistry class 10 chapter 15 in urdu medium | disadvantage of hard water | waqar ul hasan Academy 00:05 intro 00:09 disadvantage of hard water class 10 chemistry 02:07 what is scales class 10 chemistry 06:36 explain method for removal of temporary hardness chemistry class 10    • Chemistry class 10   tag: water pollution class 10 chemistry industrial effluents class 10 water pollution class 10 water softening lime-soda process boiler troubles water hardness removal filters synthetic resin method removal of permanent hardness of water engineering chemistry removal of temporary and permanent hardness of water