Small quantities of NO and HNO_3 are formed a | vedclass

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(B) The preparation reaction is: $NH_4Cl_{(aq)} + NaNO_{2(aq)} \rightarrow N_2(g) + 2H_2O(l) + NaCl(aq)$.During this process,small amounts of $NO$ and

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$H_2SO_{4(aq)}$ containing $K_2Cr_2O_7$

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(B) The preparation reaction is: $NH_4Cl_{(aq)} + NaNO_{2(aq)} \rightarrow N_2(g) + 2H_2O(l) + NaCl(aq)$.During this process,small amounts of $NO$ and $HNO_3$ are formed as impurities.These impurities are removed by passing the $N_2$ gas through an aqueous solution of $H_2SO_4$ containing $K_2Cr_2O_7$,which acts as an oxidizing agent to oxidize $NO$ to $NO_2$ or $HNO_3$ and subsequently trap them.

Small quantities of $NO$ and $HNO_3$ are formed as impurities when $N_2$ is prepared from $NH_4Cl_{(aq)}$ and $NaNO_{2(aq)}$. These impurities can be removed by passing the $N_2$ gas through which of the following?

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