In `Cr_(2) O_(7)^(2-)` every Cr atom is linked to

In K_2 Cr_2 O_7 every Cr is linked to:

In a redox reaction, dichromate ion (Cr_(2)O_(7)^(2-)) is reduced to Cr^(3+) ion, the equivalent mass of K_(2)Cr_(2)O_(7) in this reaction is :

In a reaction, Cr_(2)O_(7)^(2-) is reduced to Cr^(3+) . What is concentration of 0.1M K_(2)Cr_(2)O_(7) in equivalent per litre? Cr_(2)O_(7)^(2-)+14H^(+)+6erarr2Cr^(3+)+7H_(2)O

In a reaction, Cr_(2)O_(7)^(2-) is reduced to Cr^(3+) . What is concentration of 0.1M K_(2)Cr_(2)O_(7) in equivalent per litre? Cr_(2)O_(7)^(2-)+14H^(+)+6erarr2Cr^(3+)+7H_(2)O

In acidic medium, H_(2)O_(2) changes Cr_(2)O_(7)^(2-) ion to CrO_(5) . The oxidation states of Cr in Cr_(2)O_(7)^(2-) and CrO_(5) are respectively :