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प्रश्न
\[\ce{Cr2O^{2-}_7}\] ions possess ______ equivalent Cr-O bonds.
रिकाम्या जागा भरा
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उत्तर
\[\ce{Cr2O^{2-}_7}\] ions possess 6 equivalent Cr-O bonds.
Explanation:
In the \[\ce{Cr2O^{2-}_7}\] ion, each chromium atom is in the +6 oxidation state and forms bonds with oxygen atoms in a tetrahedral coordination. Due to resonance, six Cr-O bonds (excluding the Cr-O-Cr bridge) become equivalent in length and strength.
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