With the help of an appropriate example, justify that some of the chemical reactions are determined by (a)…
With the help of an appropriate example, justify that some of the chemical reactions are determined by
(a) Change in temperature,
(b) Evolution of a gas, and
(c) Change in colour
Give chemical equation for the reaction involved in each case.
Solution
(a) CaO + H2O → Ca(OH)2 + Heat
(or any other reaction showing release or absorption of heat)
(b) Zn + H2SO4 → ZnSO4 + H2(g) (up arrow)
(or any other)
(c) CuSO4.5H2O $\xrightarrow{\text{heat}}$ CuSO4 + 5H2O
(Blue) (White)
(or any other)