Options
(1) 2Na + 2H2O → 2NaOH + H2
(2) CaCO3 → CaO + CO2
(3) LiOH + HCl → LiCl + H2O
(4) CH4 + 2O2 → CO2 + 2H2O
Answer:
(3) LiOH + HCl → LiCl + H2O
Explanation:
A double displacement reaction, also known as a double replacement reaction or metathesis, is a type of chemical reaction where two compounds react, and the positive ions (cation) and the negative ions (anion) of the two reactants switch places, forming two new compounds or products.
A typical example is given as;
AB + CD --> BC + AD
The only reaction that matched the axample given in the options is that of option C,
