Multiple Choice
Which ions,if present in drinking water,would pose a significant health risk?
i.Pb2+
II.Hg2+
III.Cd2+
IV.Ca2+
A) I,II,and III only
B) II,III,and IV only
C) I,III,and IV only
D) I,II,III,and IV
Correct Answer:

Verified
Correct Answer:
Verified
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