Are these questions based on SEBA syllabus?

Yes, all questions follow the latest SEBA (ASSEB) syllabus for 2026–27.

SEBA Class 10 Science Chapter 3 Metals and Non-metals Important Extra Questions | Assam Eduverse

Q: Why is Chapter 3 Metals and Non-metals important for HSLC exam?

Chapter 3 explains reactivity series, ionic compounds, extraction of metals, and chemical properties frequently asked in HSLC exams.

Q: How many MCQs are asked in HSLC Science exam?

Students must answer 45 MCQs as per the latest HSLC exam pattern.

Q: Are MCQs included in Chapter 3 important questions?

Yes, conceptual and reaction-based MCQs are included according to the updated HSLC pattern.

Q: Do these include previous year questions?

Yes, previous year questions are included to match HSLC exam trends.

SEBA Class 10 Science Chapter 3 Metals and Non-metals Important Extra Questions are prepared to strengthen conceptual clarity of metals and non-metals for the HSLC examination. These SEBA Class 10 Science Chapter 3 Metals and Non-metals Important Extra Questions include theory, reasoning, previous year questions (PYQs), and important MCQs.

The SEBA Class 10 Science Chapter 3 Metals and Non-metals Important Extra Questions strictly follow the latest SEBA (ASSEB) syllabus for 2026–27. Since the HSLC exam pattern requires students to answer 45 MCQs, practising MCQs from SEBA Class 10 Science Chapter 3 Metals and Non-metals Important Extra Questions is essential.

Topics covered in SEBA Class 10 Science Chapter 3 Metals and Non-metals Important Extra Questions include physical and chemical properties, reactivity series, ionic compounds, extraction of metals, corrosion, and properties of non-metals. Students searching for HSLC Science Chapter 3 Metals and Non-metals Important Questions or SEBA Class 10 Science Chapter 3 PYQs will find this resource highly beneficial.

SEBA Class 10 Science Chapter 3 Metals and Non-metals Important Questions with PYQs and MCQs

A. Previous Year Questions with Answers

Q1. Choose the metalloid from amongst the following elements:—[HSLC 2015]
(i) Sodium
(ii) Aluminium
(iii) Chlorine
(iv) Boron
Answer: (iv) Boron

Q2. Which of the following metals reacts violently with cold water?—[HSLC 2016]
(i) Al
(ii) Fe
(iii) Na
(iv) Ca
Answer: (iii) Na

Q3. Which of the following metals reacts vigorously with oxygen?—[HSLC 2017]
(i) Na
(ii) Fe
(iii) Cu
(iv) Ag
Answer: (i) Na

Q4. An element reacts with oxygen to give a compound with high melting point. This compound is also soluble in water. The element is likely to be—[HSLC 2019, 2022]
(i) Calcium
(ii) Carbon
(iii) Silicon
(iv) Iron
Answer: (i) Calcium

Q5. Which of the following metals is the most malleable? [HSLC 2024]
(A) Sodium
(B) Iron
(C) Gold
(D) Copper
Answer: (C) Gold

Q6. If metal A displaces metal B from its solution, then [HSLC 2024]
(A) A is more reactive than B metal
(B) B is more reactive than A metal
(C) A and B metals are non-reactive
(D) A and B metals are equally reactive
Answer: (A) A is more reactive than B metal

Q7. Cinnabar is a sulphide ore of which metal? [HSLC 2024]
(A) Copper
(B) Mercury
(C) Aluminium
(D) Iron
Answer: (B) Mercury

Q8. Food cans are coated with tin and not with zinc because [HSLC 2025]
(a) zinc is more reactive than tin
(b) zinc is less reactive than tin
(c) zinc is costlier than tin
(d) zinc has a higher melting point than tin
Answer: (a) zinc is more reactive than tin

Q9. 24 carat pure gold is very soft. Therefore, it is not suitable for making jewellery. To make it harder (22 carat gold), it is alloyed with 2 parts of [HSLC 2025]
(a) silver or copper
(b) copper or tin
(c) silver or zinc
(d) copper or aluminium
Answer: (a) silver or copper

Q10. Non-metals do not displace hydrogen from dilute acids. They react with hydrogen to form [HSLC 2025]
(a) oxides
(b) hydrides
(c) carbonates
(d) water
Answer: (b) hydrides

B. Extra Questions with Answers

Q.1 Metals in their pure state have a shining surface. This property is called—
(i) Sonority
(ii) Ductility
(iii) Metallic lustre
(iv) Malleability
Answer: (iii) Metallic lustre

Q.2 Which of the following metals can be cut with a knife?
(i) Iron
(ii) Sodium
(iii) Copper
(iv) Zinc
Answer: (ii) Sodium

Q.3 The ability of metals to be beaten into thin sheets is known as—
(i) Ductility
(ii) Malleability
(iii) Hardness
(iv) Sonority
Answer: (ii) Malleability

Q.4 Assertion (A): Metals are good conductors of heat.
Reason (R): Metals have high melting points and allow heat to pass through them easily.
(i) Both A and R are true and R is the correct explanation of A.
(ii) Both A and R are true but R is not the correct explanation of A.
(iii) A is true but R is false.
(iv) A is false but R is true.
Answer: (i) Both A and R are true and R is the correct explanation of A.

Q.5 In the activity of heating a metal wire clamped on a stand, the pin fixed with wax falls after some time. This shows that metals are—
(i) Malleable
(ii) Sonorous
(iii) Good conductors of heat
(iv) Brittle
Answer: (iii) Good conductors of heat

Q.6 Which of the following is an example of an amphoteric oxide?
(i) Na2O
(ii) MgO
(iii) Al2O3
(iv) K2O
Answer: (iii) Al2O3

Q.7 Match the following:

Options:
(i) (a)-(ii), (b)-(i), (c)-(iii), (d)-(iv)
(ii) (a)-(i), (b)-(ii), (c)-(iv), (d)-(iii)
(iii) (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)
(iv) (a)-(ii), (b)-(iii), (c)-(i), (d)-(iv)
Answer: (i) (a)-(ii), (b)-(i), (c)-(iii), (d)-(iv)

Q.8 Which gas is produced when a metal reacts with dilute hydrochloric acid?
(i) Oxygen
(ii) Hydrogen
(iii) Nitrogen
(iv) Carbon dioxide
Answer: (ii) Hydrogen

Q.9 Which of the following metals does not react with water at all?
(i) Sodium
(ii) Calcium
(iii) Magnesium
(iv) Copper
Answer: (iv) Copper

Q.10 Assertion (A): Ionic compounds conduct electricity in molten state.
Reason (R): In molten state, ions are free to move.
(i) Both A and R are true and R is the correct explanation of A.
(ii) Both A and R are true but R is not the correct explanation of A.
(iii) A is true but R is false.
(iv) A is false but R is true.
Answer: (i) Both A and R are true and R is the correct explanation of A.

Q.11 Which of the following metals react violently with cold water and catch fire?
(i) Magnesium and Aluminium
(ii) Sodium and Potassium
(iii) Iron and Zinc
(iv) Copper and Silver
Answer: (ii) Sodium and Potassium

Q.12 When calcium reacts with water, it starts floating because—
(i) It is lighter than water
(ii) Hydrogen gas bubbles stick to its surface
(iii) It forms calcium oxide
(iv) It dissolves completely
Answer: (ii) Hydrogen gas bubbles stick to its surface

Q.13 Which of the following metals react with steam but not with cold or hot water?
(i) Sodium
(ii) Calcium
(iii) Aluminium
(iv) Potassium
Answer: (iii) Aluminium

Q.14 Arrange the following metals in decreasing order of their reactivity with dilute hydrochloric acid.
Mg, Al, Zn, Fe

(i) Mg > Al > Zn > Fe
(ii) Al > Mg > Zn > Fe
(iii) Zn > Mg > Al > Fe
(iv) Mg > Zn > Al > Fe
Answer: (i) Mg > Al > Zn > Fe

Q.15 Assertion (A): Copper does not react with dilute hydrochloric acid.
Reason (R): Copper is less reactive than hydrogen.
(i) Both A and R are true and R is the correct explanation of A.
(ii) Both A and R are true but R is not the correct explanation of A.
(iii) A is true but R is false.
(iv) A is false but R is true.
Answer: (i) Both A and R are true and R is the correct explanation of A.

Q.16 Which of the following metals are kept immersed in kerosene oil?
(i) Iron and Copper
(ii) Sodium and Potassium
(iii) Zinc and Lead
(iv) Silver and Gold
Answer: (ii) Sodium and Potassium

Q.17 Match the following:

Options:
(i) (a)-(ii), (b)-(i), (c)-(iii), (d)-(iv)
(ii) (a)-(i), (b)-(ii), (c)-(iv), (d)-(iii)
(iii) (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)
(iv) (a)-(ii), (b)-(iii), (c)-(i), (d)-(iv)
Answer: (i) (a)-(ii), (b)-(i), (c)-(iii), (d)-(iv)

Q.18 Which of the following is the most reactive metal according to the activity series?
(i) Aluminium
(ii) Zinc
(iii) Sodium
(iv) Iron
Answer: (iii) Sodium

Q.19 Which of the following metals are found in native (free) state in nature?
(i) Sodium and Potassium
(ii) Gold and Silver
(iii) Calcium and Magnesium
(iv) Aluminium and Zinc
Answer: (ii) Gold and Silver

Q.20 Assertion (A): Ionic compounds have high melting and boiling points.
Reason (R): Strong electrostatic forces of attraction exist between oppositely charged ions.
(i) Both A and R are true and R is the correct explanation of A.
(ii) Both A and R are true but R is not the correct explanation of A.
(iii) A is true but R is false.
(iv) A is false but R is true.
Answer: (i) Both A and R are true and R is the correct explanation of A.

Q.21 Which of the following metals does not react even with steam?
(i) Iron
(ii) Aluminium
(iii) Copper
(iv) Zinc
Answer: (iii) Copper

Q.22 During roasting, sulphide ores are heated in—
(i) Absence of air
(ii) Limited supply of air
(iii) Excess supply of air
(iv) Presence of hydrogen
Answer: (iii) Excess supply of air

Q.23 Calcination is the process of heating carbonate ores in—
(i) Excess air
(ii) Limited air
(iii) Water vapour
(iv) Oxygen only
Answer: (ii) Limited air

Q.24 Which of the following metals is extracted by electrolytic reduction?
(i) Iron
(ii) Zinc
(iii) Aluminium
(iv) Lead
Answer: (iii) Aluminium

Q.25 Assertion (A): Carbon cannot reduce the oxides of sodium and magnesium.
Reason (R): Sodium and magnesium have more affinity for oxygen than carbon.
(i) Both A and R are true and R is the correct explanation of A.
(ii) Both A and R are true but R is not the correct explanation of A.
(iii) A is true but R is false.
(iv) A is false but R is true.
Answer: (i) Both A and R are true and R is the correct explanation of A.

Q.26 In electrolytic refining, the pure metal is deposited at the—
(i) Anode
(ii) Cathode
(iii) Electrolyte
(iv) Salt bridge
Answer: (ii) Cathode

Q.27 Match the following:

Options:
(i) (a)-(ii), (b)-(iii), (c)-(i), (d)-(iv)
(ii) (a)-(iii), (b)-(ii), (c)-(iv), (d)-(i)
(iii) (a)-(iv), (b)-(i), (c)-(ii), (d)-(iii)
(iv) (a)-(ii), (b)-(i), (c)-(iii), (d)-(iv)
Answer: (i) (a)-(ii), (b)-(iii), (c)-(i), (d)-(iv)

Q.28 Which of the following statements is correct about alloys?
(i) Alloys are heterogeneous mixtures
(ii) Alloys have higher electrical conductivity than pure metals
(iii) Alloys are homogeneous mixtures of metals or metal and non-metal
(iv) Alloys are always softer than pure metals
Answer: (iii) Alloys are homogeneous mixtures of metals or metal and non-metal

Q.29 Which of the following is an example of corrosion?
(i) Burning of magnesium ribbon
(ii) Melting of wax
(iii) Rusting of iron
(iv) Boiling of water
Answer: (iii) Rusting of iron

Q.30 Assertion (A): Ionic compounds do not conduct electricity in solid state.
Reason (R): Ions are not free to move in solid state due to rigid structure.
(i) Both A and R are true and R is the correct explanation of A.
(ii) Both A and R are true but R is not the correct explanation of A.
(iii) A is true but R is false.
(iv) A is false but R is true.
Answer: (i) Both A and R are true and R is the correct explanation of A.

Q.31 Which of the following metals is the best conductor of heat?
(i) Lead
(ii) Silver
(iii) Iron
(iv) Mercury
Answer: (ii) Silver

Q.32 Which non-metal is a good conductor of electricity?
(i) Sulphur
(ii) Oxygen
(iii) Graphite
(iv) Iodine
Answer: (iii) Graphite

Q.33 When magnesium ribbon burns in air, it forms—
(i) Magnesium chloride
(ii) Magnesium oxide
(iii) Magnesium sulphide
(iv) Magnesium hydroxide
Answer: (ii) Magnesium oxide

Q.34 Which of the following oxides is amphoteric in nature?
(i) Na2O
(ii) MgO
(iii) Al2O3
(iv) K2O
Answer: (iii) Al2O3

Q.35 Assertion (A): Silver and gold do not react with oxygen even at high temperatures.
Reason (R): Silver and gold are least reactive metals.
(i) Both A and R are true and R is the correct explanation of A.
(ii) Both A and R are true but R is not the correct explanation of A.
(iii) A is true but R is false.
(iv) A is false but R is true.
Answer: (i) Both A and R are true and R is the correct explanation of A.

Q.36 Which of the following metals is purified by distillation?
(i) Iron
(ii) Copper
(iii) Aluminium
(iv) Zinc
Answer: (iv) Zinc

Q.37 In the thermit reaction, iron(III) oxide reacts with—
(i) Carbon
(ii) Aluminium
(iii) Zinc
(iv) Magnesium
Answer: (ii) Aluminium

Q.38 Match the following:

Options:
(i) (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)
(ii) (a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)
(iii) (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)
(iv) (a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)
Answer: (i) (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)

Q.39 Which of the following metals displaces copper from copper sulphate solution?
(i) Silver
(ii) Gold
(iii) Zinc
(iv) Mercury
Answer: (iii) Zinc

Q.40 Assertion (A): Non-metals form negatively charged ions.
Reason (R): Non-metals gain electrons to complete their octet.
(i) Both A and R are true and R is the correct explanation of A.
(ii) Both A and R are true but R is not the correct explanation of A.
(iii) A is true but R is false.
(iv) A is false but R is true.
Answer: (i) Both A and R are true and R is the correct explanation of A.

Q.41 Which of the following properties is shown by metals when struck with a hard object?
(i) Ductility
(ii) Sonority
(iii) Brittleness
(iv) Malleability
Answer: (ii) Sonority

Q.42 Which of the following metals has a very low melting point and melts on the palm?
(i) Iron
(ii) Zinc
(iii) Gallium
(iv) Copper
Answer: (iii) Gallium

Q.43 The bubbles formed when magnesium reacts with hot water contain—
(i) Oxygen
(ii) Hydrogen
(iii) Nitrogen
(iv) Carbon dioxide
Answer: (ii) Hydrogen

Q.44 In the activity with copper wire and iron nail dipped in salt solutions, the reaction observed is an example of—
(i) Combination reaction
(ii) Decomposition reaction
(iii) Displacement reaction
(iv) Neutralisation reaction
Answer: (iii) Displacement reaction

Q.45 Which of the following metals is least reactive according to the activity series?
(i) Iron
(ii) Zinc
(iii) Silver
(iv) Gold
Answer: (iv) Gold

Q.46 Assertion (A): Aluminium is used to make cooking utensils.
Reason (R): Aluminium is a good conductor of heat and forms a protective oxide layer.
(i) Both A and R are true and R is the correct explanation of A.
(ii) Both A and R are true but R is not the correct explanation of A.
(iii) A is true but R is false.
(iv) A is false but R is true.
Answer: (i) Both A and R are true and R is the correct explanation of A.

Q.47 Which of the following metals is stored under oil to prevent its reaction with air and moisture?
(i) Copper
(ii) Iron
(iii) Sodium
(iv) Silver
Answer: (iii) Sodium

Q.48 Match the following:

Options:
(i) (a)-(ii), (b)-(i), (c)-(iii), (d)-(iv)
(ii) (a)-(i), (b)-(ii), (c)-(iv), (d)-(iii)
(iii) (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)
(iv) (a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)
Answer: (i) (a)-(ii), (b)-(i), (c)-(iii), (d)-(iv)

Q.49 Which of the following is used for joining railway tracks?
(i) Roasting
(ii) Electrolysis
(iii) Thermit reaction
(iv) Calcination
Answer: (iii) Thermit reaction

Q.50 Assertion (A): Non-metals do not displace hydrogen from dilute acids.
Reason (R): Non-metals generally form acidic or neutral oxides.
(i) Both A and R are true and R is the correct explanation of A.
(ii) Both A and R are true but R is not the correct explanation of A.
(iii) A is true but R is false.
(iv) A is false but R is true.
Answer: (ii) Both A and R are true but R is not the correct explanation of A.

SEBA Class 10 Science Chapter 3 Metals and Non-metals Important Extra Questions for HSLC Exam 2026–27

The SEBA Class 10 Science Chapter 3 Metals and Non-metals Important Extra Questions provided here are designed according to the latest SEBA (ASSEB) syllabus 2026–27. These SEBA Class 10 Science Chapter 3 Metals and Non-metals Important Extra Questions include conceptual MCQs, short answers, long answers, and reaction-based questions aligned with the HSLC exam pattern.

As per the latest HSLC structure, students must attempt 45 MCQs. Therefore, regular practice of SEBA Class 10 Science Chapter 3 Metals and Non-metals Important Extra Questions ensures better preparation for MCQ-based and reasoning-type questions.

The SEBA Class 10 Science Chapter 3 Metals and Non-metals Important Extra Questions cover reactivity series, formation of ionic compounds, extraction of metals, properties of metals and non-metals, and important chemical reactions. Continuous revision using SEBA Class 10 Science Chapter 3 Metals and Non-metals Important Extra Questions improves accuracy and conceptual understanding.

These Class 10 Metals and Non-metals Important Questions with MCQs are ideal for final revision. Consistent practice of SEBA Class 10 Science Chapter 3 Metals and Non-metals Important Extra Questions strengthens exam confidence and scoring potential.

Frequently Asked Questions (FAQ)

1. Why is Chapter 3 Metals and Non-metals important for HSLC exam?

Chapter 3 Metals and Non-metals is important because it explains reactivity series, ionic compounds, extraction of metals, and chemical properties frequently asked in HSLC exams.

2. How many MCQs are asked in HSLC Science exam?

As per the latest HSLC exam pattern, students must answer 45 MCQs in the Science examination.

3. Are MCQs included in Chapter 3 important questions?

Yes, important conceptual and reaction-based MCQs are included as per the updated HSLC pattern.

4. Are these questions based on the SEBA syllabus?

Yes, all SEBA Class 10 Science Chapter 3 Metals and Non-metals Important Extra Questions are prepared strictly according to the latest SEBA (ASSEB) syllabus.

5. Do these include previous year questions?

Yes, previous year questions are included to help students understand exam trends and marking schemes.

6. Which topics are covered in Chapter 3?

Topics include properties of metals and non-metals, reactivity series, extraction methods, and ionic compounds.

7. Can practising these improve exam performance?

Yes, regular revision improves conceptual clarity, MCQ accuracy, and confidence for the HSLC examination.

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Class 10 Chapter 3 Metals and Non-Metals PYQs