List I | List II | ||
P. | Clarks method | 1. | \[N{{a}_{6}}{{P}_{6}}{{O}_{18}}\] |
Q. | Calgons method | 2. | \[NaAlSi{{O}_{4}}\] |
R. | Ion-exchange method | 3. | \[RS{{O}_{3}}H\] |
S. | Synthetic resins method | 4. | \[Ca{{(OH)}_{2}}\] |
A) \[P-3,Q-4,R-1,S-2\]
B) \[P-2,Q-1,R-4,S-3\]
C) \[P-4,Q-1,R-2,S-3\]
D) \[P-4,Q-3,R-2,S-1\]
Correct Answer: C
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