Chemistry Past Questions and Answers

Which of the following compounds is a basic salt?

What process is illustrated below? S<sub style='font-size: smaller;'>(s)</sub> ⇌<sup style='font-size: smaller;'>H<sub style='font-size: smaller;'>2</sub>O</sup>⇌ S <sub style='font-size: smaller;'>(aq)</sub>

A solution of a salt X reacts with AgNO<sub style='font-size: smaller;'>3</sub> solution to give white precipitate which dissolves in excess aqueous ammonia. X contains

Consider the reaction represented by the following equation: N<sub style='font-size: smaller;'>2(g)</sub> + 3H<sub style='font-size: smaller;'>2(g)</sub> ⇌ 2NH<sub style='font-size: smaller;'>3(g)</sub>; ∆H = - 92kJmol<sup style='font-size: smaller;'>1</sup>. Finely divided iron is used as catalyst in the reaction in order to

Which of these cell notations is the correct representation of a Daniell cell?