Chemistry
Why does the blue colour of copper sulphate solution fade on adding iron fillings ?
Related Questions
Define :
(a) Photochemical reaction
(b) Electrochemical reaction
Give one example in each case.
Give an example of a reaction where the following are involved
(a) Evolution of heat
(b) Absorption of heat
(c) High pressure is required
Give an example of:
(a) Single displacement reaction
(b) Double displacement reaction
(c) Photochemical reaction
(d) Thermal decomposition reaction
(e) Electrolytic decomposition reaction
(f) Combination reaction between two compounds ?
What do you understand by a 'chemical reaction'?