1.

7. Hardness of water is due to the presence ofa. Salts of sodium and potassiumb. Salts of calcium and magnesiumSalts of copper and zincd. Salts of sodium and magnesiumof water can be removed byC.Тт.​

Answer»

ANSWER:

OPTION 2 is correct

I hope it will HELP you



Discussion

No Comment Found

Related InterviewSolutions