**(i) √3 is an irrational number.**

Now, (**√**3) - (**√**3) = 0

0 is the rational number.

**(ii) Let two irrational numbers are 5√2 and√2**

Now, (5**√**2) - (**√**2) = 4**√**2

4**√**2 is the rational number.

**(iii) Let two irrational numbers are√11 and -√11**

Now, (**√**11) + (-**√**11) = 0

0 is the rational number.

**(iv) Let two irrational numbers are 4√6 and√6**

Now, (4**√**6) + (**√**6) = 5**√**6

5**√**6 is the rational number.

**(v) Let two irrational numbers are 2√3 and √3**

Now, 2**√**3 x **√**3 = 2 x 3

= 6

6 is the rational number.

**(vi) Let two irrational numbers are √2 and √5**

Now, **√**2 x **√**5 = **√**10

**√**10 is the rational number.

**(vii) Let two irrational numbers are 3√6 and √6**

Now, 3**√**6 /**√**6 = 3

3 is the rational number.

**(viii) Let two irrational numbers are√ 6 and √2**

Now,**√**6/**√**2 = **√**3 + 2/**√**2

=**√**3 x **√**2/ **√**2

= **√**3

**√**3 is an irrational number