Which is correct about tailing of Hg?

1.	Which is correct about tailing of Hg?
Answer» It is DUE to `Hg_2O` It is due to HGO It is REMOVED by `H_2O_2` It is removed by `O_3` Solution : He gets oxidised by `O_3` to give sticking nature on GLASS `2Hg+O_3rarrHg_(2)O+O_2` `Hg_(2)O+H_2O_2rarrHg_(2)+H_(2)O+O_2`

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