MCQ Questions for Class 10 Science Chapter 3, “Metals and Non-Metals,” provide an effective learning resource for students. These multiple-choice questions, equipped with answers, explore essential concepts related to metals, non-metals, and their properties. They serve as a valuable tool for Class 10 students to assess their knowledge and prepare for exams. With clear explanations and accurate answers, these MCQs facilitate a deeper comprehension of the subject matter, making the study of metals and non-metals engaging and insightful.
MCQ Questions for Class 10 Science Chapter-3 Metals and Non-Metals with Answers
Q1. Which of the following is not a metal?
Magnesium, Sodium, Iodine, Sulphur, lead, and zinc.
(a) Magnesium and Sodium
(b) Iodine and Sulphur
(c) lead and zinc
(d) None of these
Ans. Iodine and Sulphur
Q2. Which of the following properties are correct regarding metal?
(1) Metals are good conductors of heat and electricity.
(2) Metals have a high melting point.
(3) Metals in their pure state having a shining surface, this property is called metallic luster
(4) Metals are malleable, ductile and have high density.
(a) (1) and (2) properties are correct regarding metal.
(b) (3) and (4) properties are correct regarding metal.
(c) (1), (2) and (3) properties are correct regarding metal.
(d) All of the above properties are correct regarding metal.
Ans. All of the above properties are correct regarding metal.
Q3. Which of the following statements is correct regarding Malleable?
(a) Metals are a good conductor of heat and electricity.
(b) Metals are solid at room temperature except for mercury (Hg).
(c) Most of the metals are hard, except alkali metals, such as sodium, potassium, lithium, etc.
(d) Substance that can be beaten into thin sheets.
Ans. Substance that can be beaten into thin sheets.
Q4. What do you mean by ductile?
(a) Substances that can be drawn into thin wire are called ductile.
(b) Substances that can be drawn into thin metal are called ductile.
(c) Substances that can be drawn into thick objects are called ductile.
(d) None of the above
Ans. Substances that can be drawn into thin wire are called ductile.
Q5. Why is Sodium kept into kerosene oil ?
(a) because sodium is a low reactive metal.
(b) because if it is kept in the open it can explosively react with oxygen to catch fire.
(c) because if it is kept in the open , it can explosively react with carbon-dioxide to catch fire.
(d) because if it is kept in the open it can explosively react with nitrogen to catch fire.
Ans. because if it is kept in the open it can explosively react with oxygen to catch fire.
Q6. Most of the metals form respective _____________, when reacting with oxygen.
(a) Metal carbonate oxide
(b) Metal hydroxides
(c) Metal oxides
(d) None of these
Ans. Metal oxides
Q7. What happens when metal burns in the air ?
(a) It reacts with the oxygen to form metal oxides.
(b) It reacts with the carbon dioxide to form metal carbonate.
(c) It reacts with the nitrogen to form metal nitrate.
(d) It reacts with the oxide of metal and forms oxygen oxide.
Ans. It reacts with the oxygen to form metal oxides.
Q8. Which of the following statements is correct regarding metal react with water ?
(1) when metals react with water to produce a metal oxide and hydrogen gas.
(2) metal oxides that are soluble in water dissolve in it to further form metal hydroxide
(3) All the metals react with water.
(a) (1) and (2) are correct regarding how metal reacts with water.
(b) (2) and (3) are correct regarding how metal reacts with water.
(c) (1), (2) and (3) are correct regarding how metals react with water.
(d) None of these statements are correct regarding metal react with water.
Ans. (1) and (2) are correct regarding metal react with water.
Q9. What happens when metal reacts with acids ?
(a) It’s given hydrogen gas.
(b) It’s give salt
(c) It gives both salt and hydrogen gas.
(d) None of the above
Ans. It gives both salt and hydrogen gas.
Q10. Which of the following are correct arrangements of given metal in ascending order of “most reactive metals in reactivity series” ?
(1) potassium>sodium>magnesium>calcium
(2) aluminum>zinc>iron>lead
(3) hydrogen>Mercury>silver>copper
(4) gold<hydrogen<Aluminum<potassium
(a) (1) and (2) are correct arrangement
(b) (2) and (3) are correct arrangement
(c) (1) and (3) are correct arrangement
(d) (2) and (4) are correct arrangement
Ans. (2) and (4) are correct arrangement
Q11. Assertion : When metals react with non-metals, electrons are transferred from the metal atoms to the non-metal atoms, forming ions.
Reason : The metal atoms become positive ions and the non-metal atoms become negative ions.
(a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
(b) Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
(c) Assertion is true but Reason is false.
(d) Assertion is false but Reason is true.
Ans. Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
Q12. When an element has 4 electrons in its outermost shell, which type of compound does it form ?
(a) ionic compounds
(b) intermetallic compounds
(c) covalent compounds
(d) None of the above
Ans. covalent compounds
Q13. When an element have 1, 2 and 3 electrons in their outermost shell, then it is
(a) Metal
(b) Non Metal
(c) Metalloid
(d) None of these
Ans. Metal
Q14. Which of the following is incorrect regarding properties of ionic compounds ?
(1) They form crystals and They’re good insulators.
(2) They have high melting points and high boiling points.
(3)They’re hard and brittle.
(4)They conduct electricity when they are dissolved in water.
(a) (1) and (2) are incorrect regarding properties of ionic compounds.
(b) (2) and (3) are incorrect regarding properties of ionic compounds.
(c) (3) and (4) are incorrect regarding properties of ionic compounds.
(d) None of these are incorrect regarding properties of ionic compounds.
Ans. None of these are incorrect regarding properties of ionic compounds.
Q15. _____________ are solids and are somewhat hard because of the strong force of attraction between the positive and negative ions.
(a) Physical nature
(b) Ionic compounds
(c) covalent compounds
(d) All of these
Ans. Ionic compounds
Q16. Both calcium (Ca) and magnesium (Mg) are heavier than water but still float over it because
(a) hydrogen gas is evolved when these metals react with water.
(b) It is in the form of bubbles which stick on the metal surface.
(c) Both (a) and (b)
(d) None of these
Ans. Both (a) and (b)
Q17. The elements or compounds which occur naturally in the earth’s crust are known as
(a) Metals
(b) Non Metals
(c) Minerals
(d) None of these
Ans. Minerals
Q18. Which of the following statements is correct regarding occurrences of metals ?
(a) The metals occur in nature only in free state.
(b) Mostly, the metals occur in nature only in a combined state.
(c) Mostly, the metals occur in nature in a combined state but sometimes they can also occur in the free state.
(d) Mostly, the metals that occur in nature are only extracted from sea or ocean.
Ans. Mostly, the metals occur in nature in a combined state but sometimes they can also occur in the free state.
Q19. Which of the following is an incorrect statement.
(a) The metals at the bottom of the activity series are the least reactive metals.
(b) The metals at the bottom of the activity series ( like potassium, sodium, calcium, magnesium and Aluminum) are so reactive that they are never found in nature as free elements.
(c) The metals in the middle of the activity series ( like zinc, iron, lead etc. ) are moderately reactive.
(d) All the above
Ans. The metals at the bottom of the activity series ( like potassium, sodium, calcium, magnesium and Aluminum) are so reactive that they are never found in nature as free elements.
Q20. Which of the following elements are “found in native state”?
(a) potassium and sodium are found in native states.
(b) zinc and iron are found in native state.
(c) aluminum and copper are found in native state.
(d) gold and silver are found in native state.
Ans. gold and silver are found in native state.
Q21. What is enrichment of ores ?
(a) The removal of impurities from the ore. This method of removal of impurities from metal ore is called enrichment of ores.
(b) The extraction of ores from the sea and earth crust is called enrichment of ores.
(c) The ores occur in nature in a combined state but sometimes they can also occur in the free state. They are called enrichment of ores.
(d) A naturally occurring solid material from which a metal or valuable mineral can be extracted profitably.
Ans. The removal of impurities from the ore. This method of removal of impurities from metal ore is called enrichment of ores.
Q22. Which of the following statements is correct regarding “Electrolytic Refining”?
(a) It is the process of refining of metal in which impure metal is made the cathode and a thin strip of pure metal is made the anode.
(b) It is the process of refining of metal in which impure metal is made the anode and a thin strip of pure metal is made the cathode.
(c) The extracted ores from the sea and earth crust are refined by electricity is called Electrolytic Refining
(d) The removal of impurities from the ore. This method of removal of impurities from metal ore by electricity is called Electrolytic Refining.
Ans. It is the process of refining of metal in which impure metal is made the anode and a thin strip of pure metal is made the cathode.
Q23. An ___________ is a homogeneous mixture of two or more metals or a metal and a nonmetal.
(a) Element
(b) Electron
(c) Alloy
(d) None of these
Ans. Alloy
Q24. What do you mean by amphoteric oxide?
(a) Metal oxides which react with acids to produce salts and water are called amphoteric oxides.
(b) Metal oxides which react with bases to produce salts and water are called amphoteric oxides.
(c) Metal oxides which react with both acids as well as bases to produce salts and water are called amphoteric oxides.
(d) None of the above
Ans. Metal oxides which react with both acids as well as bases to produce salts and water are called amphoteric oxides.
Q25. Which of the following methods is correct regarding prevention of corrosion?
(a) Use a coating or barrier product such as grease, oil, paint or carbon fiber coating.
(b) Use non-corrosive metals, such as stainless steel or aluminum.
(c) Use drying agents and moisture barrier products.
(d) All the above
Ans. All the above