Chemistry Past Questions and Answers

Which of the following quantities is the same for one mole of Br<sub style='font-size: smaller;'>2(l)</sub> and one mole of He<sub style='font-size: smaller;'>(g)</sub>?

Which of the following acids is dibasic?

Bees inject an acidic substance when they sting. Which of the following chemical could be used to treat bee stings?

Which of the following salts can be prepared by reacting the metal with dilute H<sub style='font-size: smaller;'>2</sub>SO<sub style='font-size: smaller;'>4</sub>?

Which of the following solutions will give a precipitate with dilute tetraoxosulphate (V) acid? l. Lead (ll) trioxonitrate (V) solution ll. Barium chloride solution lll. Sodium chloride solution