Question

If metal a displaces metal b from its solution then metal a is???

Answer 1

if metal a displaces metal b from its solution then metal a is higher reactive than metal b

Answer 2

If metal A displaces metal B from its solution then metal A is higher reactive than metal B.

The most reactive metal in the periodic table is francium.

Nevertheless, francium is a man-made element and only small quantities have been produced, so for all realistic purposes, the most reactive metal is cesium.

Cesium retorts explosively with water.