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Question 7Which 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)

Answer» Question 7



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)


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