class 8 science chapter 4 mcq
(b) silver Question 16. Quiz - MCQ Questions for Class 8 Science Chapter 4 All Chapters quizzes, Notes, and Question Papers. (b) silver Metals can be spread by hammered or beaten into thin sheets, without breaking because metallic bonds in the metals do not break easily. When a copper vessel is exposed to moist air for long, it acquires a dull green coating. (c) generally, metals are ductile Iron is used to construct bridges and houses. Aluminum is a metal and sodium hydroxide is a base. (b) sulphur trioxide Acid oxides are oxides which turn ………………….. litmus paper to ……………………, Question 15. Everything around us is categorized into either metals or non-metals. Graphite is the only non-metal which is a good conductor of electricity. Paheli is writing some statements, choose the incorrect statements and help her: The substance that will be flattened on beating with a hammer is: Boojho appeared in class test where he wrote some statements but he confused to know the correct statement. Question 29. (a) basic oxides (a) chlorine Question 12. (b) Copper When sulphur dioxide is dissolved in water __________ is formed. (b) sonority (d) Zinc is costlier than tin. (b) magnesium, iron, potassium, gold Class 8 Science Chapter 4 Materials: Metals and Non-metals MCQ (Multiple Choice Questions) with Answers is available here in PDF format. Question 1. The metal which develops a protective layer over its surface by reaction with air is: (c) copper Which of the following is a non-metal but is lustrous? (a) Malleability(b) Ductility(c) Sonorous(d) Lustre. (c) aluminium (a) Iron This characteristic metallic feature is called lustre. Question 3. Question 18. 1. (c) magnesium Arrange the following in the order of their decreasing chemical activity: magnesium, potassium, iron and gold. Question 4. 29. Non-metals react with oxygen and forms non-metallic oxides which are acidic in nature. An element is a substance which is made up of only one kind of atoms. Most metals react with dilute acids (Sulphuric and hydrochloric acids) by replacing hydrogen and forming a salt. Give more and more test to be confident in topic of metals and non-metals. Hydrogen gas is produced when metals react with sodium hydroxide. But all the metals do not react with bases like “Sodium Hydroxide” to produce hydrogen gas. What Policies Can Help Students Affected by COVID-19? Question 4. Mercury is liquid metal. Hydrogen gas is released. (d) aluminium. Which of the following can be beaten into thin sheets ? Time - 05 Minutes. Alloy is a homogeneous mixture of two or more metals or of a metal and one or more non-metals. (d) mercury. We hope the given NCERT MCQ Questions for Class 8 Science Chapter 4 Materials: Metals and Non-Metals with Answers Pdf free download will help you. These Extra Questions with solution are prepared by our team of expert teachers who are teaching grade in CBSE … They have high melting point, are good conductors of heat and electricity. Question 10. Consider the following statements and choose the incorrect one: What happened when metal react with dilute acids? (d) aluminium. Question 2. Food cans are coated with tin and not with zinc because: (a) Zinc is less reactive than tin. a metal can be extracted on the commercial scale, economically is called. Question 5. Mercury (Hg) is the only exception which is liquid at room temperature. Date - July 26, 2020. (b) nitrogen (a) sodium (b) carbon dioxide Which of the following order is correct for the reactivity of metals? (d) some non-metals are ductile. 14. Pick the odd one from the following elements. (b) neutral oxides Only sodium (Na) and potassium (K) have densities less than water. Students can solve these Materials: Metals and Non-Metals Class 8 MCQs Questions with Answers and assess their preparation level. Since metals produce ringing sounds, they are said to be _______. MCQ Questions for Class 8 Social Science with Answers were prepared based on the latest exam pattern. Question 6. Which of the following properties is generally not shown by metals? Sodium is more reactive than magnesium. (b) iodine Basic oxides are oxides which turn ………………….. litmus paper to ……………………. The metal having fastest rate of formation of bubbles of hydrogen with dil. (c) lead Metals are generally hard. Question 15. Download PDFs of the Question Papers Question 11. (c) sodium (a) mercury 16. Sonority is the property of producing sound by metals. Name the gas evolved when magnesium reacts with dilute hydrochloric acid, The metal which is not corroded by air, water and acid is, Materials having qualities of both metals and non-metals are. At Study Path, you can download PDF of Multiple Choice Questions for Class 8 Chapter 4 Metals and Non-metals for free. (a) Sulphuric acid(b) Sulphoxy acid(c) Sulphurous acid(d) Sulphur trioxide, (a) water(b) Kept under open air(c) alcohol(d) Kerosene. ………………….. reactive metals displace ………………….. reactive metals from their compounds in aqueous solutions. (a) combination(b) displacement(c) double displacement(d) addition. (c) potassium, magnesium, iron, gold Question 20. Question 28. These MCQ Questions on Materials: Metals and Non-Metals Class 8 with answers pave for a quick revision of the Chapter thereby helping you to enhance subject knowledge. are not ductile. (adsbygoogle = window.adsbygoogle || []).push({}); When a copper object is exposed to moist air for a long time then copper reacts with water, carbon dioxide and oxygen present in moist air to form a green coating on the copper object. Question 14. find use in photography. (b) aluminium Command Prompt Tutorial (Part -1) – Introduction & Settings, 5. (d) phosphorus. Sodium reacts violently with cold water forming sodium hydroxide. Question 16. (b) copper Sodium cannot be stored in packets because it will catch fire. (a) sonorous (a) bromine (a) gold Therefore, here option [A] is incorrect. (b) calcium Less reactive metals displace more reactive metals from their compounds in aqueous solutions. Class 8 Science Chapter 4 MCQ tests are given below. copper cannot displace zinc from its solution zinc sulphate is copper is less reactive than zinc. If you feel any information regarding CBSE Class 8 Science Materials: Metals and Non-Metals MCQs Multiple Choice Questions with Answers is missing do reach us and we will look into it and add it accordingly. (c) copper When copper is added to iron sulphate solution: 4. Here is a compilation of Free MCQs of Class 8 Civics Social and Political Life Book Chapter 4 – Understanding Laws.Students can practice free MCQs as have been added by CBSE in the new exam pattern. शिक्षण कौशल (Teaching Skill) The surface of most metals have shiny appearance. (d) yellowish green. If you have any queries regarding Materials: Metals and Non-Metals CBSE Class 8 Science MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon. The correct statement is: (a) vaseline(b) kerosene(c) petrol(d) sulphuric acid. Thus all metals are hard meterials except sodium, potassium and lead which are soft metals. A substance which cannot be broken down further by chemical reactions, by cooling, heating, or by electrolysis, is called ______, (a) Metal(b) Non-metal(c) Element(d) Compound, 10. Graphite is a non-metal having very high melting point. 3. Question 24. (c) iron Question 7. It is an important topic and answering the MCQs prepared based on the concepts of this chapter will help the students to prepare more competently for the exams. Question 20. (a) natural oxides They are malleable and ductile. Tests are divided in sets of 5 questions. Question 21. Which one of the following metals is the most reactive and stored in kerosene? All the questions are confined to grade 8 science chapter 4 NCERT textbook only. (a) copper Metals like zinc and aluminium react with sodium hydroxide to produce ____ gas. We hope the given NCERT MCQ Questions for Class 8 Science Chapter 4 Materials: Metals and Non-Metals with Answers Pdf free download will help you. (d) Sodium All the questions are confined to grade 8 science chapter 4 NCERT textbook only. (a) metals generally have low melting point Question 7. Generally, metals are ductile. MCQ Questions for Class 8 Science with Answers were prepared based on the latest exam pattern. Aluminium metal develops a protective layer of aluminium oxide over its surface by reaction with air. 5. Also, answering the MCQs will help a student to get more acquainted solving objective questions. (b) S04 is displaced Which of the following metals catch fire on reaction with air? (a) Cu and AgNO3 solution(b) Ag and FeSO4 solution(c) Cu and NaCl solution(d) Mg and NaCl solution, ⇨ Extra Questions⇨ MCQ Questions⇨ Important Questions⇨ Sample Papers ⇨ NCERT Notes ⇨ NCERT Solutions⇨ NCERT Book. (a) Na > Au > Fe > Mg(b) Na > Mg > Fe > Au(c) Mg > Fe > Na > Au(d) Mg > Na > Fe > Au. (d) neither moisture nor air is required. Question 12. Check the below NCERT MCQ Questions for Class 8 Civics Chapter 4 Understanding Laws with Answers Pdf free download. The chapter-wise multiple choice questions from Class 8 NCERT Science will help you in understanding and checking your knowledge about the chapter. (a) Aluminium When MgO is dissolved in water, Mg(OH)2 is obtained. Question 6. (b) only air is required Choose the correct option in the following questions: Which of the following is a liquid at room temperature? A substance is said to be sonorous if it _________. (d) sulphur dioxide and Nitrogen dioxide, (d) sulphur dioxide and Nitrogen dioxide 25. 30. Log in. The property of metals by which the wires can be drawn from them. Science MCQs for Class 8 Chapter Wise with Answers PDF Download was Prepared Based on Latest Exam Pattern. (c) iodine The metal which cannot be stored in packets is: Question 9. (a) zinc The green coating of copper is also known as basic copper carbonate because it is basic in nature. All înetal exist in solid form at room temperature. Question 3. (b) iodine Sodium metal is soft whereas gold, silver and copper are solids. A liquid metal is: (b) zinc 23. The metal which is liquid at room temperature is. These MCQ's are extremely critical for all CBSE students to score better marks. Which of the following metals is in the liquid state at room temperature? 28. Gold metal is not corroded by air, water and acid because one of the least reative metals reactivity series. (c) both moisture and air is required Metals can form long wires. (a) nitrogen A reaction in which a more reactive metal replaces a less reactive metal from its salt solution is called a/an ________ reaction. Less reactive metal cannot displace the more reactive metal from its salt solution e.g. Sodium is very reactive metal, so it reacts violently even with cold water. We use non-metals in different ways. Zinc is ………………….. reactive than copper. A solution of . (b) Gold (d) Gold, Question 17. 15. 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