MCQ
Formula of ferric sulphate is
- A$FeS{O_4}$
- B$Fe\,\,{(S{O_4})_2}$
- C$F{e_2}S{O_4}$
- ✓$F{e_2}\,{(S{O_4})_3}$
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$(A)$ $\left[ FeF _{6}\right]^{3-}$
$(B)$ $\left[ Fe ( CN )_{6}\right]^{3-}$
$(C)$ $\left[ MnCl _{6}\right]^{3-}$ (high spin)
$(D)$ $\left[ Mn ( CN )_{6}\right]^{3-}$
$C{H_3}CN\xrightarrow{{Na + {C_2}{H_5}OH}}X\xrightarrow{{HN{O_2}}}Y\mathop {\xrightarrow{{{K_2}C{r_2}{O_7}}}}\limits_{{H_2}S{O_4}} Z$
$Cu ( s )+ Sn ^{2+}( aq ) \rightarrow Cu ^{2+}( aq )+ Sn ( s )$
$\left( E _{ Sn ^{2+} \mid Sn }^{0}=-0.16\, V , E _{ Cu ^{2+} \mid Cu }^{0}=0.34\, V \right.$ Take $F=96500\, C\, mol ^{-1}$ )