NCERT Solutions for Class 8 Science Chapter 4

NCERT Solutions for Class 8 Science Chapter 4 Materials: Metals and Non-Metals (अध्याय 4: पदार्थ: धातु और अधातु) Study online as well as download in PDF form free updated for session 2020-21 based on latest NCERT Books.

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NCERT Solutions for Class 8 Science Chapter 4

Class:8
Subject:Science
Chapter 4:Materials: Metals and Non-Metals

Class 8 Science Chapter 4 Answers

NCERT Solutions for Class 8 Science Chapter 4 Materials: Metals and Non-Metals is given below. Video Format solution is also available. Ask your doubts and answer the questions asked by your friends through Discussion Forum 2020-21.



Important Questions for Practice

1. 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
2. Generally metallic oxides are basic and non-metallic oxides are acidic in nature. Solution of which of the following oxides in water will change the colour of blue litmus to red?
(a) sulphur dioxide
(b) magnesium oxide
(c) iron oxide
(d) copper oxide
3. Boojho has learnt that non-metals on beating with a hammer are generally broken into pieces. Which of the following is a nonmetal?
(a) iron nail
(b) aluminium wire
(c) copper plate
(d) piece of coal
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
5. 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
6. Metals are generally solid. Which of the following metals is in the liquid state at room temperature?
(a) mercury
(b) silver
(c) aluminium
(d) sodium
7. 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
8. Which of the following non-metals reacts and catches fire on exposure to air?
(a) phosphorus
(b) nitrogen
(c) sulphur
(d) hydrogen
9. Materials which can be drawn into wires are called ductile. Which of the following is not a ductile material?
(a) silver
(b) copper
(c) sulphur
(d) aluminium
10. 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




Answers of Important Questions (MCQ)

1 (d)
2 (a)
3 (d)
4 (b)
5 (c)
6 (a)
7 (d)
8 (a)
9 (c)
10 (b).



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NCERT Solutions for Class 8 Science Chapter 4 Metals and non-metals
NCERT Solutions for Class 8 Science Chapter 4 in PDF form free
8th science chapter 4 answers