Question

when a compound X is heated in a test tube then it decomposes in y and brown Fumes 'z' gas is evolved
a.) name X,y,z
b.) write a balanced chemical equation​

Answer 1

⚛$\purple{Answer}$⚛

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❇$\green{\bf{The \ reaction:<strong><u>}</u></strong><strong><u>}</u></strong>$❇

➡️ This is the decomposition reaction of lead nitrate ($\bf{Pb(NO_3)_2}$) . In this reaction , the lead nitrate decomposes to form lead oxide ($\bf{PbO}$) and emits brown fumes of gas nitrogen dioxide ($\bf{NO_2}$) and release oxygen ($\bf{O_2}$)⬅️

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❇$\green{\bf{The \ answers:}}$❇

️$\bf{\red{\boxed{A}}}$

As in the reaction, we see that lead nitrate takes part in the reaction . And it forms lead oxide and emits brown fumes of nitrogen dioxide . Thus ,

• $\blue{X} = \bf{Lead \ nitrate \ or \ Pb(NO_3)_2}$
• $\blue{Y} = \bf{Lead\ oxide \ or \ PbO}$
• $\blue{Z} = \bf{Nitrogen \ dioxide \ or \ NO_2}$

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️$\bf{\red{\boxed{B}}}$

The balanced equation is as follows :

$2Pb(NO_3)_2(s) \longrightarrow 2PbO(s) + 4NO_2(g) + O_2(g)$

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