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In the dichromate anion (Cr2O7^(2-))...

In the dichromate anion `(Cr_2O_7^(2-))`

A

`4 Cr -O` bond are equivalent

B

`6 Cr -O` bonds are equivalent

C

All `Cr-O` bonds are equivalent

D

All `Cr-O` bonds are non - equivalent

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The correct Answer is:
B
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Number of identical Cr-O bonds in dichromate ion Cr_(2)O_(7)^(2-) is :

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In the reaction: Cr_(2)O_(7)^(2-) + 14H^(o+) + 6I^(Ө) rarr2Cr^(3+) + 3H_(2)O + 3I_(2) Which element is reduced?

Consider the reaction : Cr_(2)O_(7)^(2-)+14H^(+)+6e^(-) to 2Cr^(3+)+7H_(2)O What is the quantity of electricity in coulombs needed to reduce 1 mole of Cr_(2)O_(7)^(2-) ions ?

Consider the reaction : Cr_(2)O_(7)^(2-)+14H^(o+)+6e^(-) rarr 2Cr^(+3)+8H_(2)O What is the quantity of electricity in coulombs needed to reduce 1 mol e of Cr_(2)O_(7)^(2-) ?

What is the value of x in the following equation. Cr_2O_7^(2-)+8H^(o+)+xS_2O_3^(2-)to2Cr^(3+)+3SO_4^(2-)+3S+4H_2O

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Number of electron involved in the reduction of Cr_(2)O_(7)^(2-) ion in acidic solution to Cr^(3+) is:

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VMC MODULES ENGLISH-CHEMICAL BONDING & CHEMICAL STRUCTURE -IMPECCABLE
  1. In the dichromate anion (Cr2O7^(2-))

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  2. Which of the following compound has least dipole moment ?

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  3. Which of the following statements is not true for covalent compounds ?

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  4. Which of the following is a lewis acid ?

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  5. Water has high boiling point because

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  6. H2S is more acidic than H2O. The reason is

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  7. Isoelectronic species are

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  8. Hydrogen bonding is maximum in

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  9. Carbons in diamond exist in

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  10. CO is isoelectronic with

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  11. The structure of H2O2 is

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  12. Which of the following is the correct order of bond angle in H2S, NH3,...

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  13. Which is not a pyramidal molecule ?

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  14. Which one of the following has the regular tetrahedral structure? (A...

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  15. The correct order regarding the electronegativity of hybrid orbitals o...

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  16. The electronegaivity difference between N and F is greater than that b...

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  17. In which of the following pairs, the two species are iso-structural ?

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  18. The corrrect order of C-O bond length among CO, CO3^(2-), CO2 is

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  19. What is the dominant intermolecular force or bond that must be overco...

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  20. Which one of the following species does not exist under normal conditi...

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  21. Which of the following has the minimum bond length ?

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