NCERT Exercise 3.1 — Q5 - Metals and Non-metals
Question: You are given a hammer, a battery, a bulb, wires and a switch. (a) How could you use them to distinguish between metals and non-metals? (b) Assess the usefulness of these tests.
Answer: 1. Classification of elements can be done using physical and electrical properties. 2. A hammer can be used to test the malleability of a given sample. 3. Strike the sample with the hammer: if it f...
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