100 ml of a sample of water requires 1.96 mg of potassium dichromate in the presence of `50% H_(2)SO_(4)` for the oxidation of dissolved oxygen demand.

100 ml of a sample of water requires 1.96 mg of potassium dichromate in the presence of 50% H_(2) SO_(4) for the oxidation of dissolved organic matter in it. The chemical oxygen demand is 8x xx 10^(-1) ppm. The value of x is _____.

100 ml of a sample of water requires 1.96 mg of potassium dichromate in the presence of 50% H_2SO_4 for the oxidation of dissolved organic matter in it. Calculate the chemical oxygen demand.

100 ml of a sample of water required 1.96 mg of potassium dichromate in the presence of 50% H_2SO_4 for the oxidation in the presence organic matter in it. Calculate the chemical oxygen demand.

100 ml of a sample of water requires 0.98mg of K_(2)(M.W.= 294 ) in presence of the H_(2)SO_(4) for the oxidation of dissolved organic matter in it. The COD of the water sample is

100 ml of sample of water requires 3.92 mg of K_2 Cr_2O_3 in presence of H_2SO_4 for the oxidation of dissolved organic matter present in it. The COD of the water sample in ppm

100 mt of a sample of water requires 0.98mg of K_2Cr_2O_7 (M.W=294) in presence of the H_2SO_4 for the oxidation of dissolved organic matter in it. The C.O.D of the water is

Ethyl alcohol is oxidised with potassium dichromate in the presence of H_(2)SO_(4) to :