Question

30. Which of the following is a redox reaction?
(1) Thermite reaction
(2) Reaction of potassium iodide and lead nitrate
(3) Reaction of sodium chloride and silver nitrate
(4) Reaction of an acid and a base​

Answer 1

ans...is 3........okay

Answer 2

c)reaction of sodium chloride and silver nitrate is redox reaction.