MCQ Questions for Class 10 Science Chapter 3 Metals and Non-metals

Students can refer to the following Metals and Non-Metals MCQ Questions for Class 10 Science with Answers provided below based on the latest curriculum and examination pattern issued by CBSE and NCERT. Our teachers have provided here a collection of Metals and Non-Metals MCQ Questions for Class 10 Science covering all topics in your textbook so that students can assess themselves on all important topics and thoroughly prepare for their exams

Metals and Non-Metals MCQ Questions for Class 10 Science with Answers

We have provided below Metals and Non-Metals MCQ Questions for Class 10 Science with answers which will help the students to go through the entire syllabus and practice multiple choice questions provided here with solutions. As Metals and Non-metals MCQs for Class 10 Science pdf download can be really scoring for students, you should go through all problems provided below so that you are able to get more marks in your exams.

Question.. Among the following select the metal found free in nature:   
(a) Au
(b) Cu
(c) Na
(d) Mg

Question.. Ores mined from the earth are usually comtaminated with large amounts of impurities such as soil, sand, etc called_____________.   
(a) Gravel
(b) Gangue
(c) Sand
(d) Granite

Question.. An example of a metal which is a liquid at room temperature      
(a) Zinc
(b) Copper
(c) Mercury
(d) Bromine

Question.. Gold is used in making ornaments because it is:   
(a) Lusturous
(b) Unreactive
(c) Malleable
(d) All of the above

Question.. You are given two statements a and b, select the correct inference from this:   
i. Metals conduct heat.
ii. Diamond is the best conductor of heat.
(a) Hence diamond is a metal
(b) Statement a is correct
(c) Statements a and b is correct
(d) None of the above

Question. A list of metals arranged in the order of their decreasing activities is known as:     
(a) Periodic table
(b) Reactivity series
(c) Newland’s law of octaves
(d) All of these

Question.. In the above table arrange the metals A, B, C and D in increasing order of reactivity:     
(a) D < A < C < B
(b) D < C < B <A
(c) D < C < A < B
(d) C < D < A < B

Question.. What are the ions present in Na₂O?     
(a) Na+, O
(b) Na₂+, O₂–
(c) Na₂+, O
(d) Na+, O2-

Question.. Sodium is kept immersed in kerosene oil because:     
(a) It reacts with moisture in the air
(b) Immersing in kerosene cuts off the supply of air
(c) The reaction of sodium with air is very violent.
(d) All of the above.

Question.. Samples of four metals A, B, C and D were taken and added to the following solution one by one. The results obtained have been tabulated as follows a. Which is the least reactive metal?   
(a) A
(b) B
(c) C
(d) D

Question. Gravity separation method is based upon         
(a) preferential washing of ores and gangue particles
(b) difference in densities of ore particles and impurities
(c) difference in chemical property of ore particles and impurites
(d) none of these

Question. Alloy used in coins is         
(a) Brass
(b) Bronze
(c) German silver
(d) Magnalium

Question. Which of the following elements is not present in stainless steel?         
(a) Iron
(b) Tungsten
(c) Chromium
(d) Nickel

Question. The main function of roasting is           
(a) to remove the volatile matter
(b) to convert the ore into oxide
(c) Both (1) and (2)
(d) to make slag

Question. Sodium is obtained by the electrolysis of           
(a) an aqueous solution of sodium chloride
(b) an aqueous solution of sodium hydroxide
(c) fused sodium chloride
(d) fused sodium sulphate

Question. Rust is hydrated           
(a) aluminium oxide
(b) copper oxide
(c) iron oxide
(d) silica

Question. 2CuFeS₂ + 3O₂ → 2CuS + 2FeO + 2SO₂ Which process of metallurgy of copper is represented by above equation ?           
(a) Concentration
(b) Roasting
(c) Reduction
(d) Purification

Question. The metal which is liquid at room temperature is     
(a) Bromine
(b) Mercury
(c) Iodine
(d) Potassium

Question. In electrolytic refining, the cathode is made up of   
(a) Pure metal
(b) Impure metal
(c) Alloy
(d) Metallic salt

Question. The number of protons in an atom of an element A is 19 then, the number of electron in its ion A+ is:       
(a) 18
(b) 19
(c) 20
(d) 21

Question. Which of the following pairs of reactants will go undergo a displacement reaction?   
(a) CuSO₄ + Fe
(b) ZnSO₄ + Fe
(c) MgSO₄ + Fe
(d) Ca(SO₄)2 + Fe

Question. Bauxite is an ore of     
(a) Iron
(b) Aluminium
(c) Mercury
(d) Copper

Question. Which of the following alloys contains a non-metal as one of its constituents?   
(a) Steel
(b) Brass
(c) Amalgam
(d) Bronze

Question. In the given reaction, Al2O₃ + NaOH → ……X…… + H₂O What is element X?   
(a) NaAlO₂
(b) Na3Al
(c) Na2O₃
(d) NaAl2O₃

Question. Which of the following represent the correct order of decreasing reactivity?   
(a) Mg > Al > Zn > Fe
(b) Mg > Zn > Al > Fe
(c) Al > Zn > Fe > Mg
(d) Mg > Fe > Zn > Al

Question. An element reacts with oxygen to give a compound with a high melting point. This compound is also soluble in water. The element is likely to be     
(a) Ca
(b) C
(c) Si
(d) Fe

Question. Which of the following pairs will give displacement reactions?   
(a) NaCl solution and copper metal
(b) MgCl₂ solution and aluminium metal
(c) FeSO₄ solution and silver metal
(d) AgNO₃ solution and copper metal

Question. Which among the following is the most abundant metal found in the earth’s crust?     
(a) Magnesium
(b) Aluminium
(c) Oxygen
(d) Iron

Question. The sulphide ores are converted into oxides by heating strongly in the presence of excess air. This process is known as   
(a) Roasting
(b) Smelting
(c) Calcination
(d) Refining

Question. An element X is soft and can be cut with the help of a knife. It is very reactive to air and cannot be kept open in the air. It reacts vigorously with water. Identify the element from the following:   
(a) Mg
(b) Na
(c) P
(d) Ca

Question. The non-metal which is liquid at room temperature is:     
(a) Mercury
(b) Bromine
(c) Carbon
(d) Helium

Question. Galvanisation is a method of protecting steel and iron from rusting by coating them with a thin layer of   
(a) Copper
(b) Aluminum
(c) Zinc
(d) Bauxite

Question. Which metal cannot be used as a reducing agent in smelting?   
(a) C
(b) Al
(c) Zn
(d) None of these

Question. The reducing agent in thermite process is     
(a) Mg
(b) Al
(c) Cr
(d) Fe

Question. Which of the following steps is not involved in metallurgy of iron ?   
(a) Calcination
(b) Smelting
(c) Concentration of ore
(d) Conversion of ore into oxide

Question. The purpose of smelting an ore is     
(a) to oxidise it
(b) to reduce it
(c) to separate volatile impurities
(d) to obtain an alloy

Question. Aluminium is used in thermite welding because 
(a) aluminium is a light metal
(b) aluminium has more affinity for oxygen
(c) aluminium is a strong oxidising agent
(d) aluminium is a reactive metal

Question. Which of the following oxide cannot be reduced with carbon to obtain the metal? 
(a) MnO₂
(b) Cr2O₃
(c) Al2O₃
(d) None of these

Question. Electrolytic reduction method is used in the extraction of     
(a) highly electronegative metals
(b) highly electropositive metals
(c) transition metals
(d) noble metals

Question. Which of the following metals is obtained by electrolytic reduction process? 
(a) Fe
(b) Cu
(c) Ag
(d) Al

Question. Stainless steel in addition to iron and carbon contains   
(a) nickel and chromium
(b) copper and tin
(c) aluminium and magnesium
(d) carbon and manganese

Question. Which reagent is used in Bayer’s process – 
(a) Na2CO₃
(b) Carbon
(c) NaOH
(d) Silica

Question. The poorest conductor of heat is     
(a) Aluminium
(b) Silver
(c) Gold
(d) Lead

Question. The process of electrolysis is used for obtaining such metals which are   
(a) highly reactive
(b) moderately reactive
(c) highly unreactive
(d) All types of metals

Question. Which of the following elements is not a metal?     
(a) Calcium
(b) Copper
(c) Potassium
(d) Sulphur

Question. The constituent of haemoglobin is     
(a) Iron
(b) Sodium
(c) Copper
(d) Magnesium

Question. Which of the following does not conduct electricity?   
(a) Fused NaCl
(b) Solid NaCl
(c) Brine solution
(d) Copper

Question. The process of extraction of metal from its ores, is known as   
(a) Concentration
(b) Calcination
(c) Purification
(d) Metallurgy

Question. Food cans are coated with tin and not with zinc because 
(a) Zinc is costlier than tin
(b) Zinc has a higher melting point than tin
(c) Zinc is more reactive than tin
(d) Zinc is less reactive than tin

In the following question, a statement of Assertion
(A) is followed by a statement of Reason (R). Answer these questions by selecting appropriate option given below:
(a) Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
(b) Both Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of Assertion (A)
(c) Assertion (A) is true but Reason (R) is false.
(d) Assertion (A) is false but Reason (R) is true.

Question. Assertion (A): In the metallurgy of Al, purified Al2O3 is mixed with Na₃AlF₆ or CaF₂ .   
Reason (R): It lowers the melting point of the mixture and brings conductivity.

Question. Assertion (A): Platinum, gold and silver are used to make jewellery.   
Reason (R): Platinum, gold and silver are least reactive metals.

Question. Assertion (A): A mineral is called ore, when metal is extracted from it conveniently and economically.   
Reason (R): All ores are minerals but all minerals are not ores.

Question. Assertion (A): Food cans are coated with tin and not with zinc.   
Reason (R): Zinc is more reactive than tin.

Question. Assertion (A): Gold is isolated from other impurities by Arndt forest cyanide process.   
Reason (R): The cyanide which is used here dissolve all possible impurities.

Fill in the Blanks :

Question. An alloy of any metal with mercury is called …………………. the electrical conductivity of an alloy is ……….. than that of pure metals.  

Question. Metals above hydrogen in the activity series can displace …………. from dilute acids.   

Question. The surface of some metals, such as iron, is corroded when they are exposed to moist air for a long period of time. This phenomenon is known as ………………. .   

Question. Stainless steel contains ……………, …………. and ………….. 

Question. Froth floatation process is used for the concentration of ………….. ores.