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Number of identical Cr-O bonds in dichro...

Number of identical Cr-O bonds in dichromate ion `Cr_(2)O_(7)^(2-)` is :

A

4

B

6

C

7

D

8

Text Solution

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The correct Answer is:
B
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In the dichromate anion (Cr_2O_7^(2-))

The oxidation state of Cr in Cr_(2)O_(7)^(2-) is

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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Total number of Cr–O bonds in Chromate ion and dichromate ion is.

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The ion acting as an oxidising agent in the reaction, Cr_(2)O_(7)^(2-)+6Fe^(2+)+14H^(+)to2Cr^(3+)+6Fe^(3+)+7H_(2)O is

VK JAISWAL ENGLISH-CHEMICAL BONDING (BASIC)-SUBJECTIVE PROBLEMS
  1. Number of identical Cr-O bonds in dichromate ion Cr(2)O(7)^(2-) is :

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  2. Consider following compounds A to E : (A) XeF(n) " " (B) XeF((n+1)...

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  3. Consider the following five group (According to modern periodic table)...

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  4. Consider the following species and find out total number of species wh...

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  5. Consider the following table regarding interhalogen compounds, XY(n) (...

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  6. What is covalency of chlorine atom in second excited state ?

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  7. Sum of sigma and pi bonds in NH(4)^(+) cation is ..

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  8. Calculate the value of X-Y, for XeOF(4). (X=Number of sigma bond pair ...

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  9. The molecule ABn is planar with six pairs of electrons around A in the...

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  10. Calculate value of (X+Y+Z)/(10), here X is O-N-O bond angle in NO(3)^(...

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  11. Calculate x+y+z for H(3)PO(3) acid, where x is no. of lone pairs, y is...

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  12. How many right angle, bond angles are present in TeF(5)^(-) molecular ...

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  13. How may possible angle FSeF bond angles are present in SeF(4) molecule...

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  14. In IF(6)^(-) and TeF(5)^(-), sum of axial d-orbitals which are used in...

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  15. Among the following, total no. of planar species is : (i) SF(4) " "...

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  16. Calculate the value of " x+y-z" here x,y and z are total number of non...

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  17. Consider the following table Then calculate value of "p+q+r-s-t".

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  18. In phosphorus acid, if X is number of non bonding electron pairs. Y is...

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  19. Calculate the number of p(pi)-d(pi) bond(s) present in SO(4)^(2-) :

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  20. Sum of sigma and pi bonds in NH(4)^(+) cation is ..

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  21. Consider the following orbitals (i)3p(x) (ii)4d(z^(2)) (iii)3d(x^(2)...

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