" 1.Is zero a rational number? Justify."

Zero is a rational number.

Are there two distinct irrational numbers such that their difference is a rational number? Justify.

Are there two distinct irrational numbers such that their difference is a rational number? Justify

.Let a be a rational number and b be an irrational number. Is ab necessarily an irrational number? Justify your answer with an example.

Is zero a rational numbers ? Give reasons for you answer .

The product of zero and any rational number is 1.

Reciprocal of a non - zero rational number