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Question
In certain reaction an insoluble solid called precipitate is formed. State the colour and name of the precipitate formed in the following reaction involving addition of:
Lead nitrate to ammonium hydroxide.?
Solution
Lead nitrate and ammonium hydroxde
\[\ce{Pb(NO3)2 + 2NH4OH -> 2NH4NO3 +\underset{\text{Lead hydroxide}}{Pb(OH)2↓}}\]
The precipitate formed is Lead hydroxide which is chalky white in colour.
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