Match the column I with column II and mark the appropriate choice. Column I Column II (p) Clark's method (i) N a 6 P 6 O 18 (q) Calgon's method (ii) N a A l S i O 4 (r) Ion-exchange method (

Question

Match the column I with column II and mark the appropriate choice. Column I Column II (p) Clark's method (i) N a 6 P 6 O 18 (q) Calgon's method (ii) N a A l S i O 4 (r) Ion-exchange method (iii) R S O 3 H (s) Synthetic resins method (iv) C a O H 2

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Column I Column II (p) Clark's method (iv) C a O H 2 (q) Calgon's method (i) N a 6 P 6 O 18 (r) Ion-exchange method (ii) N a A l S i O 4 (s) Synthetic resins method (iii) R S O 3 H

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Doubts & Discussion

	Column I		Column II
(p)	Clark's method	(i)	$N a_{6} P_{6} O_{18}$
(q)	Calgon's method	(ii)	$N a A l S i O_{4}$
(r)	Ion-exchange method	(iii)	$R S O_{3} H$
(s)	Synthetic resins method	(iv)	$C a {(O H)}_{2}$