UPSC CDS/OTA

Metals and Non-Metals

General Studies

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Metals and Non-Metals

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Questions

30

Time

30 min

Marks

30

Solutions

All inline

Q1Which of the following properties is generally true for metals? 1. They are malleable and ductile. 2. They are good conductors of heat and electricity. 3. They have low melting points. Select the correct answer using the code below:MediumSolve →Q2Which of these is a physical property of non-metals?MediumSolve →Q3Statement: Sodium metal is stored under kerosene oil. Why?MediumSolve →Q4Which one of the following metals is liquid at room temperature?MediumSolve →Q5Which among the following non-metals is essential for combustion?MediumSolve →Q6Consider the following statements about displacement reactions: 1. A more reactive metal can displace a less reactive metal from its salt solution. 2. Copper can displace zinc from zinc sulphate solution. Which of the above is/are correct?MediumSolve →Q7Which of the following pairs is correct?MediumSolve →Q8Which of these metals does not react with dilute hydrochloric acid?MediumSolve →Q9Statement: Graphite is a good conductor of electricity. What makes this possible?MediumSolve →Q10Which among the following oxides is amphoteric?MediumSolve →

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