An inorganic salt solution on treatment with HCI will not give a white precipitate of which metal ions?

• A

  ${\mathrm{Hg}}_2^{2+}$

• B

  ${\mathrm{Hg}}^{2+}$

• C

  ${\mathrm{Zn}}^{2+}$

• D

  ${\mathrm{Al}}^{3+}$