In the standardisation of Na_(2)S_(2)O_(3) using K_(2)Cr_(2)O_(7) by iodometry theequivalent mass of K_(2)Cr_(2)O_(7) is:

In the standardisation of Na_(2)S_(2)O_(3) using K_(2)Cr_(2)O_(7) by i

1.	In the standardisation of Na_(2)S_(2)O_(3) using K_(2)Cr_(2)O_(7) by iodometry theequivalent mass of K_(2)Cr_(2)O_(7) is:
Answer» Molecular `MASS//2` Molecular `mass//6` Molecular `mass//3` Same as the molecular mass. Solution :The REDOX reaction is: `(Cr_(2)O_(7))^(2-)+14H^(+)+6e^(-)rarr2Cr^(3+)+7H_(2)O` Equivalent mass of `K_(2)Cr_(2)O_(7) = "(Molecular )/(6) mass"`