SELECT * FROM question_mgmt as q WHERE id=3559 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=9 AND subId=16 AND chapterId=254 and ex_no='6' AND status=1 ORDER BY CAST(question_no AS UNSIGNED) CBSE Free NCERT Solution of 10th science Metals and Non-Metals you are given a hammer a battery a bulb wires a

Question:

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

(a) How could you use them to distinguish between samples of metals and non-metals?
(b) Assess the usefulness of these tests in distinguishing between metals and non-metals.

Answer:

(a) Suppose on hammering or beating the sample it converts into sheets, then it is a metal otherwise a non-metal because metals are malleable whereas non metals are not. If we use the battery, bulb, wires, and a switch to make up a circuit. If these  samples conduct electricity, then it is a metal, otherwise a non-metal.

(b) As these tests are based on the physical properties. No chemical reactions occurs or are required in these tests. Therefore, the above tests are useful in distinguishing between metals and nonmetals.


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