Common metals arranged in order of their decreasing reactivity is known as:

Question

Question

This question was previously asked in

RRB ALP Previous Paper 18 (Held On: 29 Aug 2018 Shift 3)

Answer 1

Common metals arranged in order of their decreasing reactivity is called Activity Series.
In Activity series, Potassium (K) is the most reactive one while gold is being the least reactive one.
The metals which are highly reactive are obtained by electrolysis of their molten ores and pure metal is obtained near the cathode.
This above process is called electrolytic Reduction.
The ability of a metal to conduct electricity through it called conductivity.
Reactivity can be defined as the rate at which chemical substance tend to undergo a chemical reaction.