Hard & Soft Water Past Year (2006 - 2015) MCQs Hydrogen (OLD NCERT) Chemistry NEET Practice Questions, MCQs, Past Year Questions (PYQs), NCERT Questions, Question Bank, Class 11 and Class 12 Questions, and PDF solved with answers

The ease of adsorption of the hydrated alkali metal ions on ion-exchange resins follows the order:

1. $L i^{+} < K^{+} < N a^{+} < R b^{+}$

2. $R b^{+} < K^{+} < N a^{+} < L i^{+}$

3. $K^{+} < N a^{+} < R b^{+} < L i^{+}$

4. $N a^{+} < L i^{+} < K^{+} < R b^{+}$

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