MCQ
Iodine exists in which form in iodised salt
- ✓$I_2$
- B$NaIO_3$
- C$ICl$
- D$IO_4^-$
$HCl$ gets oxidised by $KMnO _{4}$ into $Cl _{2}$
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$(I)\, Pt(SCN)_2 - 3PEt_3,$ $(II)\,CoBr ·SO_4 · 5NH_3$ $(III)\, FeCl_2 · 6H_2O$
Reason $R:$ The increasing nuclear charge outweighs the shielding across the period.
In the light of the above statements, choose the most appropriate from the options given below:
$MnO _{4}^{-}+8 H ^{+}+5 e ^{-} \rightarrow Mn ^{2+}+4 H _{2} O , E ^{\circ}=1.51 V$
The quantity of electricity required in Faraday to reduce five moles of $MnO _{4}^{-}$ is ..... .
(Nearest integer)
Given, molar mass of $KCl$ is $74.5 g mol ^{-1}$