MCQ
The conversion of $Pb{O_2}$ to $Pb{(N{O_3})_2}$is
- AOxidation
- ✓Reduction
- CNeither oxidation nor reduction
- DBoth oxidation and reduction
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(Rounded off to the nearest integer) [Assume : $\ln 10=2.303, \ln 2=0.693$ ]

${\Lambda ^o}_{NaCl}\, = \,{\lambda ^o}_{N{a^ + }} + {\lambda ^o}_{C{l^{\, - }}}$
Reason : This is according to Kohlrausch law of independent migration of ions