Chemistry Past Questions and Answers

Which of the following will produce oxygen and hydrogen during its electrolysis using platinum electrode?

What mass of copper would be deposited by a current of 1. 0 ampere passing for 965 seconds through copper (ll) tetraoxosulphate (IV) solution? [Cu = 63.5; 1F = 96500C]

How many electrons are removed from Cr<sup style='font-size: smaller;'>2-</sup> when it is oxidized to CrO<sub style='font-size: smaller;'>4</sub><sup style='font-size: smaller;'>2-</sup>?

Substances which absorb water from the atmosphere without dissolving in it are sid to be

Pipe-borne water is usually chlorinated in order to