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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 and 8

B

1,4 and 8

C

1,3 and 12

D

1,5 and 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. Sodium carbonate of 92% purity is used in the reation Na(2)CO(3)+CaCl(...

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  2. Disproportionation products of one mole of MnO(4)^(-2) in aqueous acid...

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

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  5. a KMnO(4) + bH(2) SO(4) + c FeSO(4) to K(2) SO(4) + MnSO(4) + Fe(2) (S...

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  6. Number of moles of KI (potassium iodide) required to produce 0.1 mole ...

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  7. The weight of oxygen required to completely react with 27g  of Al is

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  8. Correct order of tendency to loss of electrons

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  9. 20 ml of nitric oxide combines with 10 ml of oxygen at STP to give NO(...

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  10. In the redox reaction : xKMnO(4) to +yNH(3) to KNO(3)+MnO(2)+KOH+H(2)O

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  11. How many moles of KMnO(4) are required to oxidise one mole of ferrous ...

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  12. When KMnO4 acts as an oxidizing agent and ultimately forms MnO(4)^(2-)...

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  13. The value of n in the following equation if balanced Cr(2)O(7)^(3+)+14...

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  14. How many moles of magnesium phosphate, Mg3(PO4)2 will contain 0.25 mol...

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  15. What is the volume (lit) of oxygen required at STP to completely conve...

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  16. A copper plate of 20 cm x 10 cm is to be plated with silver of 1 mm th...

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  17. In the reaction MnO(4)^(-)+SO(3)^(2-)+H^(+)toMn^(2+)+SO(4)^(2-) the nu...

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  18. Number of moles of KMnO(4) required to oxidize one mole of Fe(C(2)O(4)...

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  19. How many moles of acidified FeSO(4) can be completely Oxidised by one ...

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  20. In the balanced chemical reaction, IO(3)^(-)+a I^(-)+ b H^(+) to c H(2...

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