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In the dichromate dianion 
  • a)
    4Cr—O bonds are equivalent 
  • b)
    6Cr—O bonds are equivalent 
  • c)
    All Cr—O bonds are equivalent 
  • d)
    All Cr—O bonds are non-equivalent
Correct answer is option 'B'. Can you explain this answer?
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In the dichromate dianiona)4Cr—O bonds are equivalentb)6Cr—O bonds are...
Equivalence of Cr—O bonds in dichromate dianion:

Explanation:
  • 6Cr—O bonds are equivalent: In the dichromate dianion (Cr2O7)^2-, there are a total of 6 chromium-oxygen (Cr—O) bonds present. These 6 Cr—O bonds are equivalent in terms of bond length, bond strength, and chemical behavior. This is due to the symmetry of the dichromate ion, where each chromium atom is bonded to 3 oxygen atoms in a linear arrangement. As a result, all 6 Cr—O bonds are identical in the dichromate dianion.

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In the dichromate dianiona)4Cr—O bonds are equivalentb)6Cr—O bonds are equivalentc)All Cr—O bonds are equivalentd)All Cr—O bonds are non-equivalentCorrect answer is option 'B'. Can you explain this answer?
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