Chemistry Past Questions and Answers

Which of the following represents the balanced equation for the reaction of copper with concentrated trioxonitrate (V) acid?

The catalyst used in the contact process for the manufacture of tetraoxosulphate (VI) acid is

Some products of destructive distillation of coal are

Gunpower is made from charcoal, sulphur and potassium trioxonitrate (V) The salt in the mixture performs the function of

Which of the following reactions is (are) feasible? <br/>I Br <sub style='font-size: smaller;'>(1)</sub> + 2CI <sub style='font-size: smaller;'>2(aq)</sub> 2Br <sub style='font-size: smaller;'>(aq)</sub> + CI <sub style='font-size: smaller;'>2(g)</sub><br/>ll 21 <sub style='font-size: smaller;'>(aq)</sub> + Br <sub style='font-size: smaller;'>2(1)</sub> 2Br <sub style='font-size: smaller;'>(aq)</sub> + 1 <sub style='font-size: smaller;'>2(s)</sub><br/>lll 2F <sub style='font-size: smaller;'>(aq)</sub> + CI <sub style='font-size: smaller;'>2(g)</sub> 2CI <sub style='font-size: smaller;'>(aq)</sub> + F <sub style='font-size: smaller;'>2(g)</sub> IV 2F <sub style='font-size: smaller;'>(aq)</sub> + Br <sub style='font-size: smaller;'>2(1)</sub> 2Br <sub style='font-size: smaller;'>(aq)</sub> + F <sub style='font-size: smaller;'>2(g)</sub>