Q.

Lead nitrate on decomposition gives:


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a

Lead oxide

b

Nitrogen dioxide

c

Oxygen

d

All of these 

answer is D.

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Detailed Solution

Concept- A decomposition reaction is a reaction in which a single compound is broken down into its constituent elements.
Now, the molecular formula for lead nitrate isQuestion Image. Lead nitrate is an inorganic compound. Lead nitrate is a white powder. Lead nitrate is soluble in water and in nitric acid.
Now, when lead nitrate is heated it decomposes to form lead oxide, nitrogen dioxide and oxygen.
The reaction is as follows:
Question Image Lead oxide appears as yellow residue and nitrogen dioxide is seen as brown fumes.
Hence, the correct option is (4).
 
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