Q7Multiple choice
Which among the following is(are) double displacement reaction(s)? (i) Pb + CuCl2 → PbCl2 + Cu (ii) Na2SO4 + 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)
Show answer
(b) (ii) only