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In which reaction does nitrogen exhibit variation of oxidation state from –3 to +5?

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प्रश्न

In which reaction does nitrogen exhibit variation of oxidation state from –3 to +5?

एका वाक्यात उत्तर
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उत्तर

In the following series of reactions, the oxidation number of nitrogen changes from –3  in NH3 to +5 in HNO3.

\[\ce{\underset{\text{Ammonia}}{\overset{-3}{4NH3}}_{(g)} + \underset{\text{Oxygen}}{5O2}_{(g)}->[Pt/Rhgauge catalyst][500K,9 bar]\underset{\text{Nitric oxide}}{\overset{+2}{4NO}}_{(g)} + 6H2O_{(g)}}\]

\[\ce{\underset{\text{Nitric oxide}}{2NO}_{(g)} + \underset{\text{Oxygen}}{O2}_{(g)}⇌\underset{\text{Nitrogen dioxide}}{\overset{+4}{2NO2}}_{(g)}}\]

\[\ce{\underset{\text{Nitrogen dioxide}}{3NO2}_{(g)} + \underset{\text{Water}}{H2O}_{(l)}->\underset{\text{Nitric acid}}{\overset{+5}{2HNO3}}_{(l)} + \underset{\text{Nitric oxide}}{NO}_{(g)}}\]

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पाठ 6: Redox Reactions - Exercises [पृष्ठ ९१]

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बालभारती Chemistry [English] Standard 11 Maharashtra State Board
पाठ 6 Redox Reactions
Exercises | Q 3. (B) | पृष्ठ ९१

संबंधित प्रश्‍न

Choose the correct option.

Oxidation numbers of Cl atoms marked as Cla and Clb in CaOCl2 (bleaching powder) are

\[\begin{array}{cc} \ce{Cl^{{a}}}\phantom{.} \\/\phantom{...} \\ \ce{Ca}\phantom{......} \\ \backslash\phantom{..} \\\phantom{........} \ce{O-Cl^{{b}}}\phantom{.} \end{array}\]


Choose the correct option.

Oxidation number of carbon in H2CO3 is


Choose the correct option.

Oxidation number of oxygen in superoxide is


Calculate the oxidation number of the underlined atom.

H3PO3


Calculate the oxidation number of the underlined atom.

Cr2O72−


What is oxidation?


Identify the following pair of species is in its oxidized state.

Mg/Mg2+


Justify the following reaction as a redox reaction.

\[\ce{2Na_{(s)} + S_{(s)} -> Na2S_{(s)}}\]

Find out the oxidizing and reducing agents.


Provide the stock notation for the following compound:

Fe2O3


Provide the stock notation for the following compound:

MnO


Assign oxidation number atom in the following species.

Na2S2O3


Which of the following redox couple is a stronger oxidizing agent?

\[\ce{MnO^Θ_4}\](E0 = 1.51 V) and \[\ce{Cr2O^{2Θ}_7}\](E0 = 1.33 V)


Which of the following redox couple is a stronger reducing agent?

Zn (E0 = - 0.76 V) and Fe (E0 = - 0.44 V)


Complete the following table:

Assign oxidation number to the underlined species and write Stock notation of compound

Compound Oxidation number Stock notation
AuCl3    
SnCl2    
\[\ce{\underline{{V}}_2O^{4-}_{7}}\]    
\[\ce{\underline{{Pt}}Cl^2-_6}\]    
H3AsO3    

What is the oxidation number of As in H3AsO3?


What is the oxidation number of Mn in \[\ce{MnO^{2-}_4}\] ion?


In the following reaction, the oxidation number of Cr changes.

\[\ce{ClO^-_{( aq)} + Cr(OH)^-_{4(aq)} -> CrO^{2-}_{4(aq)} + Cl^-_{( aq)} (basic)}\]


Identify the strongest oxidising agent.

\[\ce{Na^+ + e^- -> Na}\]; E0 = −2.714 V

\[\ce{Pt^{2+} + 2e^- -> Pt}\]; E0 = +1.200 V

\[\ce{I2 + 2e^- -> 2I^-}\]; E0 = + 0.535 V

\[\ce{Co^{2+} + 2e^- -> Co}\]; 0 = −0.280 V


All of these are CORRECT for the complex K4[Mn(CN)6], EXCEPT:


When methane undergoes combustion in air, the oxidation number of C ____________.


Which of the following is INCORRECT?


The sum of oxidation states of all atoms in \[\ce{Cr2O^{2-}_7}\] ion is ______.


Which among the following pair of elements show highest oxidation state +7 in their different compounds?


The oxidation number of Cr in \[\ce{Cr(OH)^-_4}\] ion is ______.


The oxidation number of phosphorous in Ba(H2PO2)2 is ______.


What is the oxidation state of chlorine atom in perchloric acid?


What is the average oxidation number of sulphur in tetrathionate ion?


Which of the following statements are INCORRECT?

  1. All the transition metals except scandium form MO oxides which are ionic.
  2. The highest oxidation number corresponding to the group number in transition metals oxides is attained in Sc2B5 to Mn2B7.
  3. Basic character increases from V2B5 to V2B4 to V2B5.
  4. V2B4 dissolves in acids to give VO43– salts.
  5. CrO is basic but Cr2B5 is atmospheric.

Choose the correct answer from the options given below:


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