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  • /engineering/question-The Yellow compound of lead chromate gets dissolved on treatment with a hot NaOH solution. The product of lead formed is a :

The yellow compound of lead chromate gets dissolved on treatment with a hot NaOH solution. The product of lead formed is a :

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  • The yellow compound is lead chromate, PbCrO?. It is sparingly soluble in water but reacts with alkali.
  • When treated with hot NaOH solution: Lead chromate reacts to give sodium chromate (Na?CrO?, yellow solution)
  • And the lead part forms plumbate ion, [Pb(OH)?]²? (a soluble complex).

Thus, the product of lead formed is:

[Pb(OH)?]²?

i.e., sodium plumbate in solution.

The product of lead formed is plumbate ion, [Pb(OH)?]²?.

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Saumya Singh

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