No.
The product of sqrt(2) and sqrt(2) is 2, a rational number.
Consider surds of the form a+sqrt(b) where a and b are rational but sqrt(b) is irrational.
The surd has a conjugate pair which is a - sqrt(b).
Both these are irrational, but their product is a2 - b, which is rational.
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sqrt(2)*sqrt(3) is an irrational product.
You get a product which can be rational or irrational.
The product of 2 rationals must be rational. The product of a rational and an irrational is irrational (unless the rational is 0) The product of two irrationals can be either rational or irrational.
In between any two rational numbers there is an irrational number. In between any two irrational numbers there is a rational number.
Any of the numbers which cannot be expressed as a ratio of two integers is irrational.