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[" 11."6times10^(-3)" mole "K(2)Cr(2)O(7...

[" 11."6times10^(-3)" mole "K_(2)Cr_(2)O_(7)" reacts completely with "],[9times10^(-3)" mole "X^(n+)" to give "XO_(3)^(-)" and "Cr^(2+)." The value "],[" of "n" is- "],[[" (1) "1," (2) "2],[" (3) "3," (4) None of these "]]

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