Lead has been placed in group 1st and 2nd because - (A) It shows the valency one and two (B) It ...

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Lead has been placed in group 1st and 2nd because -
(A) It shows the valency one and two
(B) It forms insoluble \( \mathrm{PbCl}_{2} \)
\( \mathrm{P} \)
(C) It forms lead sulphide
(D) Its chloride is partly soluble in water
W.
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