📝 Materials: Metals and Non-Metals
Multiple Choice Questions
1. Which of the following is not a metal?
(a) copper
(b) sulphur
(c) aluminium
(d) iron
Ans: (b)
2. The substance that will be flattened on beating with a hammer is
(a) crystal of iodine
(b) lump of sulphur
(c) piece of coal
(d) zinc granule
Ans: (d)
3. Materials which can be drawn into wires are called ductile. Which of the following is not ductile material?
(a) silver
(b) copper
(c) sulphur
(d) aluminium
Ans: (c)
4. Metals are generally hard. Which of the following metals is an exception and can be cut with a knife?
(a) iron
(b) sodium
(c) gold
(d) magnesium
Ans: (b)
5. Metals generally react with dilute acids to produce hydrogen gas. Which one of the following metals does not react with dilute hydrochloric acid?
(a) magnesium
(b) aluminium
(c) iron
(d) copper
Ans: (d)
6. Which of the following reacts with cold water vigorously?
(a) carbon
(b) sodium
(c) magnesium
(d) sulphur
Ans: (b)
7. The metal which produces hydrogen gas on reaction with dilute hydrochloric acid as well as sodium hydroxide solution is
(a) copper
(b) iron
(c) aluminium
(d) sodium
Ans: (c)
8. Which of the following non-metals reacts and catches fire on exposure to air?
(a) phosphorus
(b) nitrogen
(c) sulphur
(d) hydrogen
Ans: (a)
9. Which of the following property is not responsible for copper to be used as electrical conduction wires?
(a) ductility
(b) colour
(c) good conductor of electricity
(d) it is solid
Ans: (b)
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