Question

what is displacement reaction and double displacement reaction ❔​

Answer 1

$\large \underbrace{ \underline{ \sf Displacement \: reaction}}$

The reaction in which more reactive element replace a less reactive element from its compound is called displacement reaction.

Ex-

$\tt \large Zn+HCl \longrightarrow ZnCl_2+H_2$

$\large \underbrace{ \underline{ \sf Double \: displacement \: reaction}}$

The reaction in which mutual exchange of ions takes place is called double displacement reaction.

Ex-

$\tt \large HCl+NaOH \longrightarrow NaCl+H_2O$

Answer 2

$\pink{αnswєr﹏✍}$

Double displacement reaction

In a displacement reaction, a more reactive element replaces a less reactive element from a compound. In a double displacement reaction, two atoms or a group of atoms switch places to form new compounds. In a displacement reaction, one displacement takes place.