question_answer

Which of the following statements is correct about the given changes?               

(i) Drawing copper into a wire

(ii) Breaking of a glass

(iii) Heating an iron nail till red hot

(iv) Inflating a basketball

A)  (i) and (ii) are chemical changes while (iii) and (iv) are physical changes.  

B)  (ii) and (iii) are chemical changes while (i) and (iv) are physical changes.   

C)  All are physical changes.

D)  All are chemical changes.