MCQ
Which of the following element has maximum density
- A$Hg$
- B$Au$
- ✓$Os$
- D$Pb$
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$(a)$ $K_2PtCl_6$ $(b)$ $PtCl_4 . 2NH_3$
$(c)$ $PtCl_4 . 3NH_3$ $(d)$ $PtCl_4 . 5NH_3$
Their electrical conductances in aqueous solutions are