નીપજ $(C)$ શું હશે ?


$(1) \,LAH (LiAlH_4)$ $(2) \,OsO_4$
$(3)\, NaIO_4$ $(4)\, NaBH_4$
$A\,\xrightarrow{{H{g^{2 + }}\,/\,{H^ + }}}B\,\xrightarrow{{NaB{H_4}}}C\,\xrightarrow[{conc.\,\,HCl}]{{ZnC{l_2}}}$ Turbidity within $5$ minutes.
$‘A’$ શું હશે?
