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In the reaction the stoichiometry coeffi...

In the reaction the stoichiometry coefficients of `Cr_(2)O_(7)^(2-), NO_(2)^(-) and H^(+)` respectively are `Cr_(2)O_(7)^(2-)+NO_(2)^(-)+H^(+)rarrCr^(3+)+NO_(3)^(-)+H_(2)O`

A

1, 3, 8

B

1, 4, 8

C

1, 3, 12

D

1, 5, 12

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The correct Answer is:
A
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In the reaction the stoichiometry coefficients of Cr_(2)O_(7)^(2-) , NO_2^(-) and H^(+) respectively are Cr_(2)O_(7)^(2-) +NO_(2)^(-) +H^(+) rarr Cr^(3+) +NO_(3)^(-) +H_(2)O

Structure of Cr_(2)O_(7)^(2-) has

Number of Cr-O sigma bonds in dichromate in Cr_(2)O_(7)^(2-) is

Identify the reactions in which dichromate acts as an oxidising reagent . I . Cr_(2)O_(7)^(2)+6Fe^(2+)+14H^(+)rarr 2Cr^(3+) +6Fe^(3+)+7H_(2)O II. Cr_(2)O_(7)^(2-)+2OH^(-1) rarr2CrO_(4)^(2-)+H_(2)O III. Cr_(2)O_(7)^(2-)+6I+14H^(+)rarr 2Cr^(3+)+3I_(2)+7H_(2)O IV. Na_(2)Cr_(2)O_(7)+2KCI rarr K_(2)Cr_(2)O_(7)+2NaCI

Cr_(2)O_(7)^(2-) + I^(-) rarr I_(2)+Cr^(3+) E_(cell)^(@)=0.79V,E_(Cr_(2)O_(7)^(2-))^(@)=1.33V . Then E_(I_(2))^(@)=?

The number of electrons involved in the half reaction Cr_(2)O_(7)^(2-)rarr2Cr^(3+) is

The correct order of N -O bond length in NO, NO_(2)^(-) , NO_(3)^(-) and N_2 O_4 will be

The correct order of N-O bond length in No, NO_(2)^(-) and NO_(3)^(-) will be

Choose the wrong statement regarding K_(2)Cr_(2)O_(7)

AAKASH SERIES-STOICHIOMETRY-OBJECTIVE EXERCISE - 2
  1. Which of the following change requires a reducing agent

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  2. Cr(OH)(3)+H(2)O(2)overset("Alkali")(to)CrO(4)^(-2)+H(2)O the number of...

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  3. In the reaction the stoichiometry coefficients of Cr(2)O(7)^(2-), NO(2...

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  4. The oxidation number of V in Rb(4)[HV(10)O(28)] is

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  5. The number of moles of MnO(4)^(-) and Cr(2)O(7)^(-2) separately requir...

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  6. A compound contains atoms of three elements A, B and C. If the oxidati...

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  7. Which one of the following is an example of disproportionation reactio...

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  8. KMnO(4) reacts with KI,in basic medium to form I(2) and MnO(2)When 250...

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  9. Whast is the oxidation state of Fe in the product formed when acidifie...

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  10. MnO(4)^(-)+8H^(+)+n e^(-)rarrMn^(2+)+4H(2)O The value of n is

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  11. Balance the following equation by choosing the correct option xKNO3 ...

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  12. X litre of carbon monoxide is present at mSTP. It is completely oxidi...

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  13. Acetylene can be prepared from calcium carbonate by a series of reacti...

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  14. Liquid benzene burns in oxygen according to 2C(6)H(6)(1)+150(2)(8) to1...

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  15. Phosphine on decomposition produces phosphorus and hydrogen. When 100 ...

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  16. One mole of fluorine reacted with two moles of hot concentrated KOH. T...

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  17. The atomic masses of two elements A and B are 20 and 40 respectively. ...

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  18. In the formation of Al(2)O(3) from Al and O(2), if 1.5 mole of oxygen ...

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  19. The weight of MgCO(3) required for the preparation of 12g of MgSO(4) b...

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  20. 0.01 mole of iodoform (CHI(3)) reacts with Ag powder to produce a gas ...

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