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NCERT Class XI Chemistry Redox Reactions Solutions

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Question : 7 of 30

Marks: +1, -0

Suggest a list of the substances where carbon can exhibit oxidation states from –4 to +4 and nitrogen from –3 to +5.

Solution:

Compound	O.N. of Carbon	Compound	O.N. of Nitrogen
$\mathrm{CH}_4$	- 4	$\mathrm{NH}_3,\mathrm{NH}_4\mathrm{Cl}$	- 3
$\mathrm{CH}_3-\mathrm{CH}_3$	- 3	$\mathrm{NH}_2-\mathrm{NH}_2$	- 2
$\mathrm{CH}_2=\mathrm{CH}_2$ or $\mathrm{CH}_3\mathrm{Cl}$	- 2	$\mathrm{NH}=\mathrm{NH}$ , $\mathrm{NH}_2\mathrm{OH}$	- 1
$\mathrm{CH}\equiv\mathrm{CH}$	- 1	$\mathrm{N}\equiv\mathrm{N}$	0
$\mathrm{C}_6\mathrm{H}_{12}\mathrm{O}_6$	0	$\mathrm{N}_2\mathrm{O}$	+ 1
$\mathrm{C}_6\mathrm{Cl}_6$	+ 1	NO	+ 2
$\mathrm{CHCl}_3$	+ 2	$\mathrm{N}_2\mathrm{O}_3,\mathrm{HNO}_2$	+ 3
$\mathrm{(COOH)}_2$	+ 3	$\mathrm{N}_2\mathrm{O}_4$	+ 4
$\mathrm{CCl}_4,\mathrm{CO}_2$	+ 4	$\mathrm{N}_2\mathrm{O}_5,\mathrm{HNO}_3$	+ 5

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