Chemical changes can take place in the following conditions.
a. Contact in physical states [0.5 mark]
b. Solution of reactants [0.5 mark]
c. Electricity [0.5 mark]
d. Heat [0.5 mark]
e. Light [0.5 mark]
f. Catalyst [0.5 mark]
Mention the various conditions required for a chemical reaction to occur. [TEXTBOOK QUESTION - V(2)]
The ——— (physical/chemical) state of the reactants and products are mentioned along with the conditions required for the chemical reaction.
(a) Explain the term "rancidity".
(b) What type of chemical reaction is responsible for causing rancidity?
(c) State and explain the various methods for preventing or retarding rancidity of food.
Give the main conditions necessary for a chemical reaction to occur?