Question

Multiple Choice Questions (MCQs) Scientific/Practical skills:
Look at the figure given alongside and tick (V) the correct options:
1. The portion of the grey nail which is inside the blue solution of copper sulphate becomes
(a) green
(b) pink
(c) reddish brown
(d) orange
2. This change in colour of the dipped portion of the iron nail in copper sulphate
solution is because of deposition of
(a) copper
(b) iron
(c) sulphur
(d) aluminium
3. This activity shows
(a) iron is more reactive than copper.
(b) copper is more reactive than iron.
(C) iron is unreactive.
(d) copper is unreactive
Please ans tomorrow is my exam

Answer 1

Answer:

1.c)reddish brown

2.a)copper

3.a)iron is more reactive than copper

Answer 2

1- reddish brown
2-copper
3-iron is more reactive than copper