What is observed when to a solution of lead nitrate, a small amount of sodium hydroxide is added?

The precipitate dissolves to give a colourless solution.

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A white precipitate of lead oxide is formed.

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A white precipitate of lead hydroxide is formed.

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none of the above.

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Solution

The correct option is C
A white precipitate of lead hydroxide is formed.

When a small amount of sodium hydroxide is added to a solution of lead nitrate, sodium nitrate is formed and a white coloured lead hydroxide is precipitated, as shown below:

$P b (N O_{3})_{2} + 2 N a O H$ $\to$ $2 N a N O_{3} + P b (O H)_{2} ↓$

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What is observed when to a solution of lead nitrate, a small amount of sodium hydroxide is added?

The correct option is C A white precipitate of lead hydroxide is formed. When a small amount of sodium hydroxide is added to a solution of lead nitrate, sodium nitrate is formed and a white coloured lead hydroxide is precipitated, as shown below: Pb(NO3)2+2NaOH→2NaNO3+Pb(OH)2↓