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PbCl(2) is added with 'X' as a result an...

`PbCl_(2)` is added with 'X' as a result an yellow coloured precipitate 'Y' is observed, 'Y' is soluble in NaOH. The compound formed when `'Y'` dissolves in NaOH is

A

`PbCrO_(4)`

B

`Na_(2)CrO_(4)`

C

`Na_(2)PbO_(2)`

D

Both 2 `& ` 3

Text Solution

Verified by Experts

The correct Answer is:
4
`PbCl_(2)+K_(2)CrO_(4)rarrPbCrO_(4)+2KCl`
`PbCrO_(4)+4NaOH rarr Na_(2)PbO_(2)+Na_(2)CrO_(4)+2H_(2)O`
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