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(B) When $Hg_2Cl_2$ is heated with $NaCl$,the sublimate formed is $HgCl_2$. In this process,$Hg_2Cl_2$ reacts with $NaCl$ to form $HgCl_2$ which subli

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$HgCl_2$

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(B) When $Hg_2Cl_2$ is heated with $NaCl$,the sublimate formed is $HgCl_2$. In this process,$Hg_2Cl_2$ reacts with $NaCl$ to form $HgCl_2$ which sublimes. The chemical reaction is: $Hg_2Cl_2 + 2NaCl \rightarrow 2HgCl + 2NaCl$ (This is not the standard industrial process). Actually,the reaction is: $HgSO_4 + 2NaCl \rightarrow HgCl_2 + Na_2SO_4$. $HgCl_2$ is the volatile component that sublimes.

The sublimate formed during the process of sublimation of $Hg_2Cl_2$ with $NaCl$ is .........

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