The CBSE class 10th Metals and Non-Metals 3 Marks Question 2025 for Exam Day are listed below.
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Arrange the following metals in decreasing order of their reactivity:
a) Cu, Ca, Mg, Na, Zn
b) You are provided with three metals: sodium, magnesium, and copper. Using only water as the reactant, how will you identify each of them?
c) Which metal listed in (a) is most likely to occur in the native state?
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Which method of concentration of ore is preferred in the following cases and why?
a) The ore has higher-density particles mixed with a large bulk of low-density impurities.
b) The ore consists of copper sulphide intermixed with clay particles.
c) Give an example of amalgam.
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a) Why is ZnO called an amphoteric oxide? Name another amphoteric oxide.
b) What are alkalis? Give one example of an alkali.
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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 to distinguish between metals and non-metals.
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Name an alloy of
(i). Aluminium is used in the construction of aircraft.
(ii). Lead is used in joining metals for electric work.
(iii). Copper is used in household vessels.
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Pratyush took sulphur powder on a spatula and heated it. He collected the gas evolved by inverting a test tube over it. What will be the action of gas in –
(1) Dry litmus paper?
(2) Moist litmus paper?
Write a balanced chemical equation for the reaction taking place.
The above available CBSE 10th Metals and Non-Metals 3 Marks Question 2025 for Exam Day questions have been taken from the previous year's question papers. Students must thoroughly practice these questions to ace the CBSE Class 10 Examinations 2025.
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