MCQ
Alkyl halides are prepared from alcohol by treating with
- A$HCl + ZnCl_2$
- B$Br_2 + Red\, P$
- C$KI + H_3PO_4$
- ✓All of the above
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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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