CH4 + 2O2 → CO2 + 2H2O
A. (I) and (IV)
B. Only (II)
C. (I) and (II)
D. (III) and (IV)
Answer:B
CH4 + 2O2 → CO2 + 2H2O
A. (I) and (IV) B. Only (II) C. (I) and (II) D. (III) and (IV)
Explanation: A double displacement reaction involves the displacement of two ions of two different compounds that results in the formation of new compounds. Here, only in reaction (II), ions of both reactants are exchanged and two entirely different compounds are formed. For example.