. Which among the following is(are) double displacement reaction(s)
(i) Pb + CuCl2 → PbCl2 + Cu
(ii) Na2 SO4 + BaCl2 → BaSO4 + 2NaCl
(iii) C + O2 → CO2
(iv) CH4 + 2O2 → CO2 + 2H2O
(a) (i) and (iv)
(b) (ii) only
(c) (i) and (ii)
(d) (iii) and (iv)
Best Answer
Answer: (b) (ii) only
Explanation:
Here, Sodium and Barium are displaced from each other’s salts, hence it is a double displacement reaction.
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