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[" The oxoanion which contains all equivalent "],[" M-O bond is :- "],[" (1) "CrO_(4)^(2-)" (II) "MnO_(4)^(-)" (III) "Cr_(2)O_(7)^(2-)],[" (1) III only "],[" (3) I,II "]

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The oxoanion which contains all equivalent M-O bond is: (I) CrO_(4)^(2-) (II) MnO_(4)^(-) (III) Cr_(2)O_(7)^(2-)

The oxoanion which contains all equivalent M-O bond is I) CrO_(4)^(2-)" "II)MnO_(4)^(-)" "III)Cr_(2)O_(7)^(2-)

K_(2)Cr_(2)O_(7)+NaoH to CrO_(4)^(2-)

K_(2)Cr_(2)O_(7)+NaoH to CrO_(4)^(2-)

K_(2)Cr_(2)O_(7)+NaoH to CrO_(4)^(2-)

The number of equivalent Cr-O bonds in CrO_4^(2-) is

Complete the following chemical equations : (i) 8MnO_(4)^(-)+3S_(2)O_(3)^(2-)+H_(2)O to (ii) Cr_(2)O_(7)^(2-)+3Sn^(2+)+14H^(+) to