Chemistry Past Questions and Answers

Chemical equilibrium is attained when

What is the effect of using vanadium (V) oxide as catalyst in the reaction represented by the following equation? 2SO<sub style='font-size: smaller;'>2</sub> + O<sub style='font-size: smaller;'>2</sub> ⇌ 2SO<sub style='font-size: smaller;'>3</sub>; ∆H = - xKJmol-<sup style='font-size: smaller;'>1</sup>

A finely divided from of a metal burns more readily in air than the rod from because the rod has

Which of the following will displace copper from a solution of copper (ll) salt?

What is the value of x in the following equation? Cr<sub style='font-size: smaller;'>2</sub>O<sub style='font-size: smaller;'>7</sub><sup style='font-size: smaller;'>2-</sup> + 14H<sup style='font-size: smaller;'>+</sup> + xe- → 2Cr<sup style='font-size: smaller;'>3+</sup> + 7H<sub style='font-size: smaller;'>2</sub>O