Which of the following are physical changes? (NCERT Exemplar) |
I. Melting of iron metal |
II. Rusting of iron |
III. Bending of an iron rod |
IV. Drawing a wire of iron metal |
A) I, II and III
B) I, II and IV
C) I, III and IV
D) II, III and IV
Correct Answer: C
Solution :
[c]Options (I) Melting of iron metal, (III) |
Bending of an iron rod and (IV) Drawing a wire of iron metal are physical changes, because in three processes, iron changes its form, not the chemical composition. |
In rusting of iron, its chemical composition is changed. |
You need to login to perform this action.
You will be redirected in
3 sec