Q.

When NH4NO3 is gently heated, an oxide of Nitrogen is formed. What is the oxidation state of Nitrogen in this oxide ?

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a

+ 4

b

+ 2

c

+ 3

d

+ 1

answer is D.

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Detailed Solution

  • When ammonium nitrate is gently heated, dinitrogen monoxide N2​O is obtained.
  • Let x be the oxidation state of N in N2​O.
  • The oxidation state of oxygen is −2.
  • The sum of the oxidation states for neutral molecule is 0.
  • Hence, 2x+(−2)=0 or, x=+1.
  • Therefore, the oxidation state of N is +1.
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