`K_(2)Cr_(2)O_(7)+HCl toKCl+CrCl_(3)`+....+.........

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

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

Potassium dichromate K_(2)Cr_(2)O_(7) + HCl overset(Delta)to ......... + .......... + ......... + Cl_(2)

Identify the oxidising and reducing agents in the following reactions. K_(2)Cr_(2)O_(7)+14HCl to 2KCl+2CrCl_(3)+7H_(2)O+3Cl_(2)

Complete and balace the following chemical reaction: (i). Na_2CO_3 is added to a solution of copper sulphate. CuSO_4+Na_2O_3+H_2Oto…+Na_2SO_4 …. (ii). Potassium dichromate and concentrated HCl are heated together. K_2Cr_2O_7+"HCl"toKCl+.....+.....+....H_2O (iii). Copper reacts with HNO_3 to give NO and NO_2 in molar ratio of 2:1 Cu+HNO_3to...+NO+NO_2+ .....

Balance the following equations K_2Cr_2O_7 + HCl to KCl + CrCl_3 + H_2O + Cl_2

The conversion of K_(2)Cr_(2)O_(7) into Cr_(2)(SO_(4))_(3) is

n-factor of HCl in the given reaction is K_2Cr_2O_7 + HCl→ KCl + CrCl_3 + Cl_2 + H_2O

K_(2)Cr_(2)O_(7) is obtained in the following steps: 2FeCrO_(4)+2Na_(2)CO_(3)+OtoFe_(2)O_(3)+2Na_(2)CrO_(4)+2CO_(2) 2Na_(2)CrO_(4)+H_(2)SO_(4)toNa_(2)Cr_(2)O_(7)+H_(2)O+Na_(2)SO_(4) Na_(2)Cr_(2)O_(7)+2KCltoK_(2)Cr_(2)+2NaCl To get 0.25 " mol of " K_(2)Cr_(2)O_(7) , " mol of " 50% pure FeCrO_(4) required.

When K_(2)Cr_(2)O_(7) is converted to K_(2)CrO_(4) , the change in the oxidation state of chromium is