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Choose the correct option. The coefficients p, q, r, s in the reaction pCrX2OX7X2Θ+qFeX2⊕⟶rCrX3⊕+sFeX3⊕+HX2O respectively are:

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प्रश्न

Choose the correct option.

The coefficients p, q, r, s in the reaction \[\ce{{p}Cr2O7^{2Θ} + {q}Fe^{2⊕}->{r}Cr^{3⊕} + {s}Fe^{3⊕} + H2O}\] respectively are:

पर्याय

  • 1, 2, 6, 6

  • 6, 1, 2, 4

  • 1, 6, 2, 6

  • 1, 2, 4, 6

MCQ
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उत्तर

The coefficients p, q, r, s in the reaction \[\ce{{p}Cr2O7^{2Θ} + {q}Fe^{2⊕}->{r}Cr^{3⊕} + {s}Fe^{3⊕} + H2O}\] respectively are: 1, 6, 2, 6

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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 1. (D) | पृष्ठ ९१

संबंधित प्रश्‍न

Choose the correct option.

A compound contains atoms of three elements A, B, and C. If the oxidation state of A is +2, B is +5 and that of C is -2, the compound is possibly represented by


Choose the correct option.

Oxidation number of oxygen in superoxide is


Choose the correct option.

The process \[\ce{SO2->S2Cl2}\] is


In which chemical reaction does carbon exhibit variation of oxidation state from - 4 to + 4? Write a balanced chemical reaction.


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


Calculate the oxidation number of the underlined atom.

H2S4O6


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


Assign oxidation number atom in the following species.

Na2S2O3


Assign oxidation number atom in the following species.

H3BO3


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

Cl2 (E0 = 1.36 V) and Br2 (E0 = 1.09 V)


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

Li (E0 = - 3.05 V) and Mg (E0 = - 2.36 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    

The following statements are CORRECT, EXCEPT:


Oxidation state of Xe in XeOF4 is ____________.


What is the oxidation number of As in H3AsO3?


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

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


Oxidation state of nitrogen in nitric oxide is ______.


In which among the following compounds, oxidation number of nitrogen is + 5?


What is the oxidation number of Carbon in K2C2O4?


The sum of oxidation number of all atoms in \[\ce{SnO^{2-}_3}\] ion is _______.


In which of the compounds does ‘manganese’ exhibit the highest oxidation number?


Find CORRECT statement for following reaction.

\[\ce{2Ag+ + Cu -> 2Ag + Cu^2+}\]


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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