MCQ
The following square - planar complex shows cis - trans isomerism
- A$PtCl_4^{-2}$
- B$[PtCl_3(NH_3)]^-$
- ✓$[Pt Cl_2 (CN)_2]^{-2}$
- D$[PtCl_2 (en)]$
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$A.$ During charging of battery, $PbSO _4$ on anode is converted into $PbO _2$
$B.$ During charging of battery, $PbSO _4$ on cathode is converted into $PbO _2$
$C.$ Lead storage battery, consists of grid of lead packed with $PbO _2$ as anode
$D.$ Lead storage battery has $\sim 38 \%$ solution of sulphuric acid as an electrolyte
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