In which of the following,the oxidation state | vedclass

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(B) To find the oxidation state of nitrogen $(N)$ in each compound,we assign the oxidation states of other elements (Hydrogen = $+1$,Oxygen = $-2$,Chl

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$NH_4Cl$

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(B) To find the oxidation state of nitrogen $(N)$ in each compound,we assign the oxidation states of other elements (Hydrogen = $+1$,Oxygen = $-2$,Chlorine = $-1$):$1$. In $NH_2OH$: $x + 2(+1) + (-2) + (+1) = 0 \implies x + 1 = 0 \implies x = -1$.$2$. In $NH_4Cl$: $x + 4(+1) + (-1) = 0 \implies x + 3 = 0 \implies x = -3$.$3$. In $N_2H_4$: $2x + 4(+1) = 0 \implies 2x = -4 \implies x = -2$.$4$. In $HNO_2$: $(+1) + x + 2(-2) = 0 \implies x - 3 = 0 \implies x = +3$.Comparing the values: $-1, -3, -2, +3$. The lowest oxidation state is $-3$ in $NH_4Cl$.

In which of the following,the oxidation state of nitrogen is lowest?

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