When KNO_3 is heated with concentrated H_2SO_ | vedclass

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Question

(C) The reaction between $KNO_3$ and concentrated $H_2SO_4$ produces $HNO_3$:$KNO_3 + H_2SO_4 \xrightarrow{\Delta} KHSO_4 + HNO_3$Upon further heating

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$NO_2$

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(C) The reaction between $KNO_3$ and concentrated $H_2SO_4$ produces $HNO_3$:$KNO_3 + H_2SO_4 \xrightarrow{\Delta} KHSO_4 + HNO_3$Upon further heating,$HNO_3$ undergoes thermal decomposition to produce brown fumes of nitrogen dioxide $(NO_2)$:$4HNO_3 \xrightarrow{\Delta} 4NO_2 + 2H_2O + O_2$Therefore,the brown fumes are due to $NO_2$.

When $KNO_3$ is heated with concentrated $H_2SO_4$,brown fumes are evolved. These fumes are due to:

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