Mht CetHydrogen And Its CompoundsMHT CET 2026 13th April Evening ShiftMCQ+1 / -02026Which of the following ions are responsible for hardness of water?A$\text{Ag}^+, \text{Au}^{3+}$ ionsB$\text{Hg}^{2+}, \text{Pb}^{2+}$ ionsC$\text{Ca}^{2+}$ and $\text{Mg}^{2+}$ ions.D$\text{As}^{3+}, \text{CN}^-$Check AnswerClear SelectionReveal AnswerShow Explanation
