Question 14
Match the items of Column I with the items of Column II.
(a) (iv); (b) (vi); (c) (v); (d) (i); (e) (iii); (f) (ii)
∙Carbon dioxide forms calcium carbonate with lime water [Ca(OH)2] and turns it milky. It is a chemical change.
∙During rusting iron reacts with moist oxygen to form iron oxide, which is called rust.