Question

Between any two irrational numbers there is infinite num of rational

Answer 1

yes, the given sentence is right as :

example : between
$\sqrt{2} \: and \: \sqrt{3}$
there is
1. 15050050005...
2. 151005100051.....
3. 152005200052...
and so on.

so, there is infinite number between two irrational no.