question_answer

Four pairs of terms are given as:

(i)\[{{a}^{2}}\,\,\text{and}\,\,3ab\]

(ii) \[3yz\] and \[6zy\]

(iii) \[{{b}^{2}}\,\,\text{and}\,\,-11{{b}^{2}}~\]

(iv) \[{{a}^{2}}b\,\,\text{and}\,\,3a{{b}^{2}}~\]

Which two given pairs are pairs of unlike terms?

A)  (ii) and (iii)       

B)  (ii) and (iv)     

C)  (i) and (iii)                    

D)  (i) and (iv)