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

Students can practice the NCERT MCQ Questions for Class 10 Science Chapter 3 Metals and Non-Metals with Answers Pdf free download is available here. Revise all the concepts easily by taking help from the MCQ Questions for Class 10 Science with Answers are prepared based on the latest exam pattern. Students can refer to these Metals and Non-Metals Class 10 MCQs Questions with Answers and assess their preparation level.

Q1. Heating pyrites to remove sulphur is called

(a) Smelting
(b) Calcination
(c) Liquation
(d) Roasting

(d) Roasting

Q2. The atomic number of an element ‘X’ is 12. Which inert gas is nearest to X?

(a) He
(b) Ar
(c) Ne
(d) Kr

Q3. During smelting, an additional substance is added which combines with impurities to form a fusible product. It is known as

(a) Slag
(b) Mud
(c) Gangue
(d) Flux

(d) Flux

Q4. The electronic configuration of three elements X, Y and Z are as follows:
X = 2, 4, Y = 2, 7, Z = 2,1 Which two elements will combine to form an ionic compound and write the correct formula,

(a) X2Y
(b) YZ
(c) XZ3
(d) Y23Z

(b) YZ

Q5. An element X 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

(a) Mg
(b) Na
(c) P
(d) Ca

(b) Na

Q6. Which of the following metals exist in their native state in nature?
(i) Cu
(ii) Au
(iii) Zn
(iv) Ag

(a) (i) and (ii)
(b) (ii) and (iii)
(c) (ii) and (iv)
(d) (iii) and (iv)

Q7. Metals are refined by using different methods. Which of the following metals are refined by electrolytic refining?
(i) Au
(ii) Cu
(iii) Na
(iv) K

(a) (i) and (ii)
(b) (i) and (iii)
(c) (ii) and (iii)
(d) (iii)and (iv)

(a) (i) and (ii)

Q8. Metal M occurs in the Earth’s crust as its oxide M2O3. An alloy of this metal is used in making aircrafts. The ore of the metal M is

(a) magnetite
(b) haematite
(c) bauxite
(d) pyrolusite

Q9. Consider The Following Statements, Choose The Incorrect One:

[A]. Gold being least reactive metal has been placed at the bottom in the series.
[B]. If a metal is below hydrogen in the activity series, then it will easily react with water and acids to produce hydrogen gas.
[C]. Potassium is the most reactive metal here, so it has been placed at the top in the reactivity series.
[D]. All the metals placed below hydrogen in the reactivity series lose electrons less readily than hydrogen.

[B]. If a metal is below hydrogen in the activity series, then it will easily react with water and acids to produce hydrogen gas.

Q10. Which Of The Following Statement Is Or Are Incorrect?

[A]. Most non-metals produce acidic oxides when dissolve in water.
[B]. Platinum, is an allotrope of carbon, is the hardest natural substance known and has a very high melting and boiling point.
[C]. Alkali metals (lithium, sodium, potassium) are so soft that they can be cut with a knife.
[D]. All metals except mercury exist as solids at room temperature.

[B]. Platinum, is an allotrope of carbon, is the hardest natural substance known and has a very high melting and boiling point.

Q11. 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

[C]. HNO3

Q12. Which Of The Following Are Not Ionic Compounds?

[A]. KCl, HCl
[B]. HCl, CCl4
[C]. CCl4, NaCl
[D]. KCl, CCl4

[B]. HCl, CCl4

Q13. Which Of The Following Statement Is Or Are Correct?

[A]. Metals usually displace hydrogen from dilute acids.
[B]. Metals react with dilute hydrochloric acid to give metal chlorides and hydrogen gas.
[C]. Magnesium reacts quite rapidly with dilute hydrochloric acid forming magnesium chloride and hydrogen gas.
[D]. All the above

[D]. All the above

Q14. Mohan Is Writing Some Statements, Choose The Incorrect Statements And Help Him:

[A]. The most abundant non-metal in the earth’s crust is oxygen.
[B]. The most abundant metal in the earth’s crust is Aluminium.
[C]. Oxygen (O) is a non-metal which forms positively charged oxide ions (O2+) by gaining electrons.
[D]. Carbon is one of the most important non-metals because all the life on this earth is based on carbon compounds.

[C]. Oxygen (O) is a non-metal which forms positively charged oxide ions (O2+) by gaining electrons.

Q15. Consider The Following Statement And Choose The Incorrect One:

[A]. Potassium oxide is also a basic oxide which reacts with water to form an alkali called potassium hydroxide.
[B]. Magnesium oxide dissolves in water partially to form magnesium hydroxide.
[C]. Sulphur dioxide is a basic oxide which reacts with water to form an alkali called sulphur dioxide.
[D]. Magnesium oxide solution turns red litmus to blue, it is basic in nature.

[C]. Sulphur dioxide is a basic oxide which reacts with water to form an alkali called sulphur dioxide.

Q16. Non-metals form:

(a) basic oxides
(b) unstable hydrides
(c) covalent volatile halides
(d) gases on heating.

Q17. Which of the following is an alloy?

(a) steel
(b) bronze
(c) brass
(d) all these

(d) all these

Q18. The atomic number of an element A is 19. The number of electrons in its ion A+ will be

(a) 18
(b) 19
(c) 20
(d) 21

(a) 18

Q19. The atomic number of an element B is 17. The number of electrons in its ion B will be:

(a) 17
(b) 18
(c) 19
(d) 20.

(b) 18

Q20. The elements whose oxides can turn phenolphithalein solution pink are:

(a) Na and K
(b) K and C
(c) Na and S
(d) K and P.

(a) Na and K

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