A) Hard water only
B) Soft water only
C) Both (a) and (b)
D) Water containing plum juice
Correct Answer: B
Solution :
[b] Presence of \[C{{O}_{3}}^{2-}\]and \[S{{O}_{4}}^{2-}\]ions in water reduced the tendency of dissolution of pb in water as \[Pb{{(OH)}_{2.}}\]
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