Question

Which of the following reaction is a redox reaction ?

a) P2O5 + 2H2O ⟶ H4P2O7

b) 2AgNO3 + BaCl2 ⟶ 2AgCl + Ba(NO3)2

c) BaCl2 + H2SO4 ⟶ BaSO4 + 2HCl

d) Cu + 2AgNO3 ⟶ 2Ag + Cu(NO3)2​

Answer 1

Answer:

Hey mate here is ur answer

Reaction no. 1 is redox reaction as the H2O is losing oxygen and P2O5 is gaining 2 atoms of oxygen

Hope it helps u mate.

Mark my answer as brainlist

Answer 2

Explanation:

Hello fellow aspirant.....

Option D is the correct answer as there are no change in the oxidation number in the other three options where as oxidation state of Cu in reactant side is 0 and then gets converted to +2 in the product side

TIP - Check the change in oxidation states and your question will be solved in seconds