Question

Identify the type of chemical reaction in the following statements and define each of them :
(i) Digestion of food in our body
(ii) Rusting of iron
(iii) Heating of manganese dioxide with aluminium powder
(iv) Blue colour of copper sulphate solution disappears when iron filings are added to it.
(v) Dilute hydrochloric acid is added to sodium hydroxide solution to form Sodium chloride and that traits mav be dominant or recessive ? Describe

Answer 1

(i) Decomposition Reaction: A decomposition reaction is a type of reaction in which a single compound breaks down into two or more element or a new compound.
(ii) Oxidation Reaction: Oxidation is the loss of electrons during a reaction by a molecule, atom or ion.
(iii) Displacement Reaction: A reaction in which the most reactive element displaces the less reactive element from its compound.
(iv) Displacement Reaction: More reactive metal displaces less reactive metal from its salt solution.
(v) Neutralisation Reaction: A neutralization reaction is when an acid and a base react to form water and a salt and involves the combination of H⁺ ions and OH^– ions to generate water.