Q.3.5.    You are given a hammer, a battery, a bulb, wires and a switch.

 (b)         Assess the usefulness of these tests in distinguishing between metals and

Answers (1)
D Devendra Khairwa

These are useful as there is no chemical reaction involved in identifying the metals and non-metals. These are just the physical test which can carried out at any level.

As in first test hammer is easily available at home. And in second test we have use wires which are easily available in market.