MCQ
$C{H_3}CN$ is known as acetonitrile because
- AIt contains an aceto group
- ✓On hydrolysis it gives acetic acid
- CBoth $(a)$ and $(b)$
- DNone of these
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(Given: Atomic no. $Eu, 63; Sm , 62 ; Tm , 69 ; Tb$, $65 ; Yb , 70 ; Dy , 66]$
$Zn \to Z{n^{2 + }} + 2{e^ - };{E^o} = 0.76\,\,V$,$Fe \to F{e^{2 + }} + 2{e^ - };{E^o} = 0.44\,\,V$ what will be the emf of cell, whose cell-reaction is ............ $\mathrm{V}$
$F{e^{2 + }}(aq) + Zn \to Z{n^{2 + }}(aq) + Fe$
$C{O_{2(g)}} + {H_{2(g)}} \to C{O_{(g)}} + {H_2}{O_{(g)}}$ .....$KJ$