In the last year board examination, Rahul were asked a question where he had to choose the statement which was/were correct? Will you be able to answer this question?

Here, all statements are correct. Hence, your answer will be option [D].

Which of the following can undergo a chemical reaction?

CuSO4 + Fe can undergo a chemical reaction. As iron metal is more reactive than copper metal, iron displaces copper from copper sulphate solution and forms aqueous iron sulphate (FeSO4) and solid copper (Cu). This a single displacement reaction also known as a substitution reaction. The iron can be solid or aqueous but the copper sulphate must be aqueous in order to facilitate the reaction.

Reshma is writing some statements, choose the incorrect statements and help him:

The most abundant metal in the earth’s crust is Aluminium, which constitutes about 7% of the earth’s crust. The second most abundant metal in the earth’s crust is iron, which constitutes about 4% of the earth’s crust. The major metals in the earth’s crust in the decreasing order of their abundance are: Aluminium, Iron, Calcium, Sodium, Potassium and Magnesium.

Which of the following non-metals is a liquid?

Bromine, a non-metal, is a liquid. Metals are generally solid whereas non-metals can be solid, liquid and gas. Bromine is a non-metal that exists as liquid.

Generally, non-metals are not conductors of electricity. Which of the following is a good conductor of electricity?

Graphite is a good conductor of electricity and heat. Graphite has weak intermolecular forces between its layers. Hence it has de-localised electrons. As electrons are free to move through its structure, it conducts heat and electricity well.

Although metals form basic oxides. Which of the following metals form an amphoteric oxide?

Al (Aluminium) forms amphoteric oxides. An amphoteric oxide acts both as an acid and as a base.

In the last year board examination, Rahul were asked a question where he had to choose the statement which was/were incorrect? Will you be able to answer this question?

The major non-metals in the earth’s crust in the decreasing order of their abundance are: Oxygen, Silicon, Phosphorus and Sulphur.

The electronic configurations of three elements X, Y and Z are X — 2, 8; Y — 2, 8, 7 and Z — 2, 8, 2. Which of the following is correct?

Atomic number of X is 10, so this must be Ne (Neon), a noble or inert gas. This gas has octate configuration. Atomic number of Y is 2 + 8 + 7 = 17, so this must be chlorine (Cl). Chlorine is a non–metal. Non-metals have 5 to 7 electrons in their valence shell. Atomic number of Z is 2 + 8 + 2 = 12, so this must be Magnesium (Mg). Magnesium is a metal. Metals have 1 or 2 electrons in their valence shell.

Reaction between X and Y, forms compound Z. X loses electron and Y gains electron. Which of the following properties is not shown by Z?

Compound Z does not show the property of “Has low melting point”. As compound Z is formed because of transfer of electrons between X and Y, hence Z is an ionic compound. Such compounds do not have low melting point. Bonds in ionic compounds are very strong. Therefore, a lot of energy is needed to break them. This is the reason why ionic compounds have high melting and boiling points.

In a quiz competition, you are asked a question where you have to choose the statement which is/ are incorrect?

Silver metal is the best conductor of heat. Copper and Aluminium metals are also very good conductors of heat. Mercury metal is also a poor conductor of heat. The poorest conductor of heat among the metals is lead.

In a science class test, you are asked a question where you have to choose the statement which is/ are incorrect?

Here, all statements are correct. Hence, your answer will be option [D].

Which among the following statements is incorrect for magnesium metal?

Magnesium metal reacts with cold water to form magnesium oxide and evolves hydrogen gas is an incorrect statement. Magnesium when reacts with water gives magnesium hydroxide and hydrogen gas. Reaction of metals and water generally produce hydrogen gas and their respective hydroxide. For example, sodium metal reacts with water to produce sodium hydroxide and liberates hydrogen gas.

Prachi is writing some statements but she confused to know whether the statements are correct or not? Would you help her?

Here, all statements are correct. Hence, your answer will be option [D].

Alloys are homogeneous mixtures of a metal with a metal or non-metal. Which among the following alloys contain non-metal as one of its constituents?

Steel contains non-metal as one of its constituents. Steel is an alloy made by combining iron and other elements mainly carbon. Carbon gives strength to iron. It is used to make buildings, ships, automobiles, machines, appliances.

An element A is soft and can be cut with a knife. This is very reactive to air and cannot be kept open in air. It reacts vigorously with water. Identify the element from the following.

Na (sodium) possesses all the above properties. It is too soft and can be cut with a knife. It is also very reactive and reacts with oxygen or moisture present in air and produce sodium hydroxide which is highly exothermic reaction producing a lot of heat. It also reacts with water vigorously and burns due to the formation of hydrogen gas. That is why sodium is stored in kerosene oil to prevent any reaction.

Consider the following statement and choose the incorrect one:

The metals which have high densities, we mean that metals are heavy substances. For example, the density of iron is 7.8 g/cm3 which is quite high. So, iron metal is a heavy substance. There are, however, some exceptions. For example, sodium and potassium metals have low densities (of 0.97 g/cm3 and 0.86 g/cm3 respectively). They are very light metals.

During electrolytic refining of zinc, it gets:

During electrolytic refining of zinc, it gets deposited on cathode. Since, zinc ions are positively charged, it gets deposited at the negatively charged cathode.

In a science quiz competition, you are asked a question where you have to choose the statement which is/ are incorrect?

Non-metals are brittle which means that non-metals break into pieces when hammered or stretched. For example, sulphur and phosphorus are solid non-metals which are non-malleable and non-ductile.

An electrolytic cell consists of:

An electrolytic cell consists of positively charged anode and negatively charged cathode. Positively charged ions (cations) are deposited at negatively charged cathode. Negatively charged ions (anions) are deposited at positively charged anode.

In a science class test, you are asked a question where you have to choose the statement which is/ are incorrect?

Only one non-metal carbon (in the form of diamond) is very hard. In fact, diamond (which is an allotropic form of carbon) is the hardest natural substance known

An alloy is a homogeneous mixture. Alloy is a homogeneous mixture of two or more metals. For example, brass is an alloy of copper and zinc. Stainless steel is an alloy made with combination of iron with chromium with nickel.

In a science exam, you are asked a question where you have to choose the statement which is/ are incorrect?

Non-metals have low melting points and boiling points. But diamond is an exception. Diamond is a non-metal which has a very high melting point and boiling point (just like metals).

2mL each of concentrated HCl, HNO3 and a mixture of concentrated HCl and concentrated HNO3 in the ratio of 3 : 1 were taken in test tubes labelled as A, B and C. A small piece of metal was put in each test tube. No change occurred in test tubes A and B but the metal got dissolved in test tube C respectively. The metal could be

Test tube C contains chemical mixture called aqua-regia. It is a mixture of concentrated HCl and concentrated HNO3 in the ratio of 3:1. Aqua-regia dissolves gold and platinum in it while hydrochloric acid and nitric acid do not.

Q.32. Which one of the following four metals would be displaced from the solution of its salts by other three metals?

Ag (silver) would be displaced from the solution of its salts by other three metals, i.e., magnesium (Mg), zinc (Zn) and copper (Cu). Silver (Ag) is a noble metal and is least reactive metal among other metals given.

Consider the following statement and choose the incorrect one:

A solution of sulphur dioxide in water turns blue litmus to red. This shows that sulphur dioxide is acidic in nature.

Generally, non-metals are not lustrous. Which of the following non-metal is lustrous?

Iodine is a non-metal that is lustrous. Graphite is another non-metal that is shiny and lustrous.

Consider the following statement and choose the correct one:

Here, all the statements are correct. Hence, your answer will be option [D].

Which of the following metals are obtained by electrolysis of their chlorides in molten state?

Sodium and calcium are very reactive metals and are placed towards the top of the reactivity series. These are produced by the electrolysis of their molten chlorides. The metal ions are deposited at negatively charged cathode and chlorine is deposited at positively charged anode.

Consider the following statements and choose the correct statement(s):

Here, all the statements are correct. Hence, your answer will be option [D].

Generally, metals are solid in nature. Which one of the following metals is found in liquid state at room temperature?

Mercury (Hg) is the only metal which is found in liquid state at room temperature. All other metals are solid at room temperature. It also has the lowest melting point.

Stainless steel is very useful material for our life. In stainless steel, iron is mixed with:

Alloying elements enhance the structure and properties such as durability, strength and toughness of the metal. It makes them corrosion resistant. Stainless steel is an alloy of iron, nickel and chromium.

Pratibha is taking preparation for her final examination. She is writing some statements about “metals and non-metals” but she confused to know whether the statements are correct or not? Would you help her?

Here, all the statements are correct. Hence, your answer will be option [D].

Galvanisation is a method of protecting iron from rusting by coating with a thin layer of

Coating iron or steel with a layer of zinc prevents it from rusting. This process is called galvanization. Water pipes are also galvanized to protect them from corrosion.

Mohan is writing some statements, choose the incorrect statements and help him:

Oxygen (O) is a non-metal which forms negatively charged oxide ions (O2–) by gaining electrons.

Silver articles become black on prolonged exposure to air. This is due to the formation of

Silver articles turn black after prolonged exposure to air due to the reaction of sulphur present in air. Silver reacts with sulphur to form dark grey to black silver sulphide.

Which of the following statement is or are correct?

Here, all the statements are correct. Hence, your answer will be option [D].

Metals are refined by using different methods. Which of the following metals are refined by electrolytic refining?

Gold (Ag) and copper (Cu) obtained after extraction is in impure form. So, metals Au (gold) and Cu (copper) are refined by electrolytic refining. Other than gold and copper, electrolytic refining is used for metals such as Zn and Ag. Sodium (Na) and potassium (K) are extracted by electrolytic reduction. Metals obtained after electrolytic reduction are in pure form.

Which of the following metals exist in their native state in nature?

Gold (Au) and silver (Ag) are not reactive or very less reactive. These metals are called noble metals. Thus, these are placed at the bottom of the reactivity series. Since gold and silver are least reactive of all the metals, these are found in free state in nature.

Payal is writing some statements but she confused to know whether the statements are incorrect or not? Would you help her?

Some metals are chemically very reactive whereas others are less reactive or unreactive. For example, potassium and sodium react very, very rapidly with cold water, so they are very reactive metals. Zinc and iron react only with steam, so they are less reactive metals. On the other hand, copper and silver do not react even with steam, so they are quite unreactive metals. Silver and gold metals also do not react with dilute acids.

In which of the following statements is or are correct?

Here, all the statements are correct. Hence, your answer will be option [D].

Which of the following are not ionic compounds?

Non-ionic compounds are those that have covalent bonds. Hydrochloric acid (HCl) and carbon tetrachloride (CCl4) form covalent due to sharing of a pair of electrons between two atoms. Whereas sodium chloride (NaCl) and potassium chloride (KCl) form ionic compounds as they consist of positive and negative ions.

Gaurav appeared in class test where he wrote some statements but he confused to know the correct statement. Would you help him to know that?

Here, all the statements are correct. Hence, your answer will be option [D].

The composition of aqua-regia is

Aqua-regia is a mixture of concentrated hydrochloric acid and concentrated nitric acid in the ratio of 3:1. Aqua-regia being a very strong acid dissolves gold in it.

Class 10 Science Chapter 3 MCQ

Class 10 Science Chapter 3 MCQ (Multiple Choice Questions) of Metals and Non-Metals. These sets of MCQ Online Tests contain more than 100 questions with suitable explanation and answers.

At a time, it shows only five questions per set of MCQ test. If you want to practice more MCQs, click on START A NEW TEST button. These questions are important for not only CBSE board but UP Board and other board also whoever following NCERT textbooks for exams.

Class 10 Science Chapter 3 MCQ for 2020-2021

Class: 10	Science
Chapter: 3	Multiple Choice Questions (MCQ) Tests

Class 10 Science Chapter 3 MCQ with Answers

Class 10 Science chapter 3 Metal and non-metals MCQ questions online test are given below for practice. These MCQs are prepared from NCERT Books only. Answers as well as explanation of each answers are also given just below the questions. Questions are useful for all board like CBSE, UP Board, MP Board, and other board who are following NCERT Textbooks 2020-2021 for their final exams.

Which of the following statement is or are incorrect?

[A]. All the non-metals are solids or gases, except bromine which is a liquid non-metal at the room temperature.

[B]. Diamond and graphite, are also non-metals.

[C]. Non-metals are the elements which form negative ions by gaining electrons or accepting electrons.

[D]. Oxygen is the only non-metal element which loses electrons to form positive ions, Oxygen ions (O+).

View Answer

In which of the following statements is or are incorrect?

[A]. Gallium and cesium metals also have high melting points (of 1300°C and 2800°C respectively).

[B]. Sodium and potassium are soft metals which can be easily cut with a knife.

[C]. Bangles are made of ‘gold’ metal because it is a highly lustrous (or shiny) metal.

[D]. Silver metal is an excellent reflector of light.

View Answer

Read the following sentences carefully and choose the incorrect option(s):

[A]. Potassium metal (K) also reacts with the oxygen (O2) of air at room temperature to form a basic oxide, called potassium oxide (K2O).

[B]. Metal oxides, being acidic, turn blue litmus solution red.

[C]. Sodium metal reacts with the oxygen of air at room temperature to form a basic oxide called sodium oxide.

[D]. Sodium oxide and potassium oxide are the two metal oxides which are soluble in water.

View Answer

If copper is kept open in air, it slowly loses its shining brown surface and gains a green coating. It is due to the formation of:

[A]. CuSO4

[B]. CuCO3

[C]. Cu(NO3)2

[D]. CuO

View Answer

In which of the following statement is or are incorrect?

[A]. Sodium reacts vigorously with cold water forming sodium hydroxide and hydrogen gas.

[B]. Calcium reacts with cold water to form calcium hydroxide and hydrogen gas.

[C]. Magnesium metal react with cold water to form magnesium hydroxide and hydrogen.

[D]. None of the above

View Answer

Consider the given statements and choose the incorrect one:

[A]. Hydrogen is an inert gaseous non-metal whose presence in air reduces the rate of combustion and makes it safe.

[B]. Non-metal sulphur is present in many of the substances found in plants and animals.

[C]. Carbon compounds found like proteins, fats, carbohydrates, vitamins and enzymes, etc.

[D]. Non-metals are the elements that do not conduct heat and electricity, and are neither malleable nor ductile.

View Answer

Which one of the following properties is not generally exhibited by ionic compounds?

[A]. Solubility in water

[B]. Electrical conductivity in solid state

[C]. High melting and boiling points

[D]. Electrical conductivity in molten state

View Answer

Generally, metals react with acids to give salt and hydrogen gas. Which of the following acids does not give hydrogen gas on reacting with metals (except Mn and Mg)?

[A]. H2SO4

[B]. HCl

[C]. HNO3

[D]. All of these

View Answer

Which of the following oxide(s) of iron would be obtained on the prolonged reaction of iron with steam?

[A]. FeO

[B]. Fe2O3

[C]. Fe3O4

[D]. Fe2O3 and Fe3O4

View Answer

Q10

Which one of the following metals does not react with cold as well as hot water?

[A]. Na

[B]. Ca

[C]. Mg

[D]. Fe

View Answer

Start a New Test

Hydrogen gas is not evolved when a metal reacts with nitric acid. Why?

It is because HNO3 is a strong oxidising agent. It oxidises the H2 produced to water and itself gets reduced to any of the nitrogen oxides (N2O, NO, NO2). But magnesium (Mg) and manganese (Mn) react with very dilute HNO3 to evolve H2 gas.

Why does Magnesium float on the surface of hot water?

Magnesium reacts with hot water to form magnesium hydroxide and hydrogen. It starts floating due to the bubbles of hydrogen gas sticking to its surface.

Why do ionic compounds have high melting and boiling points?

This is because a considerable amount of energy is required to break the strong inter-ionic attraction.

Why are the sulphides and carbonates converted into their oxides during the extraction of metal?

It is easier to obtain a metal from its oxide, as compared to its sulphides and carbonates. Therefore, prior to reduction, the metal sulphides and carbonates must be converted into metal oxides.

All the Multiple Choice questions are prepared by the subject expert. Only important questions for board examinations are included here with answer and explanation. There are four choices with one correct choice. About 25 sets of MCQ online tests are given to use free.

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Class 10 Science Chapter 3 MCQ

Class 10 Science Chapter 3 MCQ for 2020-2021

Class 10 Science Chapter 3 MCQ with Answers

Which of the following statement is or are incorrect?

In which of the following statements is or are incorrect?

Read the following sentences carefully and choose the incorrect option(s):

If copper is kept open in air, it slowly loses its shining brown surface and gains a green coating. It is due to the formation of:

In which of the following statement is or are incorrect?

Consider the given statements and choose the incorrect one:

Which one of the following properties is not generally exhibited by ionic compounds?

Generally, metals react with acids to give salt and hydrogen gas. Which of the following acids does not give hydrogen gas on reacting with metals (except Mn and Mg)?

Which of the following oxide(s) of iron would be obtained on the prolonged reaction of iron with steam?

Which one of the following metals does not react with cold as well as hot water?

Hydrogen gas is not evolved when a metal reacts with nitric acid. Why?

Why does Magnesium float on the surface of hot water?

Why do ionic compounds have high melting and boiling points?

Why are the sulphides and carbonates converted into their oxides during the extraction of metal?

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Class 10 Science Chapter 3 MCQ

Class 10 Science Chapter 3 MCQ for 2020-2021

Class 10 Science Chapter 3 MCQ with Answers

Which of the following statement is or are incorrect?

In which of the following statements is or are incorrect?

Read the following sentences carefully and choose the incorrect option(s):

If copper is kept open in air, it slowly loses its shining brown surface and gains a green coating. It is due to the formation of:

In which of the following statement is or are incorrect?

Consider the given statements and choose the incorrect one:

Which one of the following properties is not generally exhibited by ionic compounds?

Generally, metals react with acids to give salt and hydrogen gas. Which of the following acids does not give hydrogen gas on reacting with metals (except Mn and Mg)?

Which of the following oxide(s) of iron would be obtained on the prolonged reaction of iron with steam?

Which one of the following metals does not react with cold as well as hot water?

Hydrogen gas is not evolved when a metal reacts with nitric acid. Why?

Why does Magnesium float on the surface of hot water?

Why do ionic compounds have high melting and boiling points?

Why are the sulphides and carbonates converted into their oxides during the extraction of metal?

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High School

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