Question

1. Bronze is an alloy of
(a) cu and zn
(b) zn and sn
(c) zn and Pb
(d) cu and sn

2. which of the following forms a colloidal solution in water ?
(1) Salt
(2) glucose
(3) starch
(4) sugar​

Answer 1

1. cu and zn

2 starch...............