Manganese and nitrogen can show a range of different oxidation states. Calculate the sum of the oxidation states of Mn and N in each row of the table. In which row is this sum the smallest? Options manganese-containing species nitrogen-containing species --- --- --- A $\text{MnCl}_4$ $\text{N}_2$ B $\text{MnCO}_3$ $\text{NO}_2^-$ C $\text{K}_2\text{MnO}_4$ $\text{NH}_4^+$ D $\text{Mn(OH)}_3$ $\text{NH}_2\text{OH}$

Chemistry 9701/13 — May/June 2019

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Q11MElectrochemistryFree sample

Manganese and nitrogen can show a range of different oxidation states.

Calculate the sum of the oxidation states of Mn and N in each row of the table.

In which row is this sum the smallest?

	manganese-containing species	nitrogen-containing species
A	$\text{MnCl}_4$	$\text{N}_2$
B	$\text{MnCO}_3$	$\text{NO}_2^-$
C	$\text{K}_2\text{MnO}_4$	$\text{NH}_4^+$
D	$\text{Mn(OH)}_3$	$\text{NH}_2\text{OH}$

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