
Zinc sulphate forms a colourless solution in water. Will you observe any colour on adding copper turning in it?
Important Questions on Materials Metals and Non-Metals


Which of the following metal can displace the other two metals from their salt solutions?
Zinc, Iron, Copper


In the given figure, you find that the bulb glows when an iron nail is placed between two ends of the wire.
Complete the following sentence on the basis of this fact.
From the given figure_____ is a metal.

In Fig 4.1 you find that the bulb glows when an iron nail is placed between two ends of wire. Complete the following sentences on the bases of this fact.
Fig 4.1
Metals are good _____ of electricity.

If in Fig. iron nail is replaced by a wooden stick, will the bulb glow or not? Justify your answer.

Paheli prepared a blue coloured solution of copper sulphate in beaker A and placed an iron nail in it. Boojho prepared a yellowish green solution of ferrous sulphate in beaker B and placed a copper wire in it. What changes will they observe in the two beakers after an hour?
