MCQ
$N −$ Ethyl pthalimide on hydrolysis gives:
- AMethyl alcohol
- ✓Ethyl amine
- CDimethyl amine
- DDiethyl amine

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$(I)$ they exhibit high enthalpies of atomisation as the $d-$ subshell is full
$(II)$ $zn$ and $Cd$ do not show variable oxidation states while $Hg$ shows $+ I$ and $+ II$
$(III)$ Compound of $Zn,\,Cd$ and $Hg$, are paramagnetic in nature
$(IV)$ $Zn,\,Cd$ and $Hg$ are called soft metals
$Fe^{3+} + e \to Fe^{2+}\, ;\, E^o = 0.771\,volt$
$I_2 + 2e \to 2I^-\, ;\, E^o = 0.536\,volt$
$E^o$ cell for the cell reaction
$2Fe^{3+} + 2I^-\to 2Fe^{2+}+ I_2$ is
