A gas which turns lead nitrate solution blue black
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nitrogen dioxide is the answer
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Let us identify the gas
Explanation:
Lead nitrate
Its molecular formula is Pb(NO₃)₂.
It is formed when lead with valency +2 reacts with nitrate that is NO₃⁻ reacts .
The ionic bond formation takes place .
When this lead nitrate is heated it decomposes to form lead oxide and nitrogen dioxide and oxygen gas .
The reaction involved is : Pb(NO₃)₂-------> PbO + NO₂ + O₂
The gas that turns it blue black is recognized as : Nitrogen dioxide
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