The anode mud in the electrolytic refining of silver contains

  • A

    $Zn, \,Cu, \,Ag,\, Au$

  • B

    $Zn,\, Ag,\, Au$

  • C

    $Au$ only

  • D

    $Cu, \,Ag, \,Au$

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$\underbrace {\mathop {Hg{I_2}\,}\limits_{'X'} \xrightarrow[{Sublimation}]{\Delta }\,\mathop {Hg{I_2}}\limits_{'Y'} \xrightarrow{{Cooling}}\mathop {Hg{I_2}}\limits_{'Z'} }_{On\,\,rubbing}$

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The spin only magnetic moment value of the ion among $\mathrm{Ti}^{2+}, \mathrm{V}^{2+}, \mathrm{Co}^{3+}$ and $\mathrm{Cr}^{2+}$, that acts as strong oxidising agent in aqueous solution is .......... BM (Near integer).

(Given atomic numbers: $\mathrm{Ti}: 22, \mathrm{~V}: 23, \mathrm{Cr}: 24$, Co: $27$)

  • [JEE MAIN 2024]

Coloured salts are formed by