Question

10. 3. 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
water.​

Answer 1

Answer:

2 rusting there should be oxygen water

Answer 2

1. Exothermic reaction
2.Oxidation reaction
3. displacement reaction or redox reaction
4. Displacement reaction
5. Neutralization reaction