Why hard water does not give lather with soap? |
|||
(a) |
Hard water contains calcium and magnesium ions which form precipitate with soap |
(b) |
Hard water contains sulphate and chloride ions which form precipitate |
(c) |
pH of hard water is high |
(d) |
pH of hard water is less |
Why hard water does not give lather with soap? |
|||
(a) |
Hard water contains calcium and magnesium ions which form precipitate with soap |
(b) |
Hard water contains sulphate and chloride ions which form precipitate |
(c) |
pH of hard water is high |
(d) |
pH of hard water is less |
Hard water contains calcium and magnesium ions which form precipitate with soap