Question

2. Which among the following is/are double displacement reaction(s)? Select the
correct option and justify your answer.
(i) Pb + Cucl2, — PbCl2 + Cu
(ii) Na2SO4 + BaCl2 - BaSO4 + 2Nacl
(iii) C + O2 - > CO2
(iv) CH4 + 2O2 - CO2 + 2H2O
(a) (i) and (iv)
(b) (i) only
(c) (i) and (ii)
(d) (iii) and (iv)​

Answer 1

Answer:

(a) (i) and (iv) are show double displacement reaction

Answer 2

Answer:

(A)is the write answer