Class 10 Science Chapter 3 MCQs with Answers | Metals and Non-Metals Important Questions Set 2

📋 Questions 20 ⏱️ Time 30 min

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Question 1 of 20

Metals react with dilute acids to produce:

Salt and oxygen Salt and hydrogen Salt and nitrogen Salt only

Question 2 of 20

Which acid generally does not evolve hydrogen gas with metals?

HCl H₂SO₄ HNO₃ CH₃COOH

Question 3 of 20

Aqua regia is a mixture of HCl and HNO₃ in ratio:

1:1 1:3 3:1 2:1

Question 4 of 20

Aqua regia can dissolve:

Iron only Copper only Gold and platinum Zinc only

Question 5 of 20

A more reactive metal displaces:

More reactive metal Less reactive metal Non-metal Hydrogen only

Question 6 of 20

Which is the most reactive metal in activity series?

Sodium Calcium Potassium Magnesium

Question 7 of 20

Which is the least reactive metal?

Silver Mercury Copper Gold

Question 8 of 20

Metals form positive ions by:

Gaining electrons Sharing electrons Losing electrons Gaining protons

Question 9 of 20

Non-metals form negative ions by:

Losing electrons Gaining electrons Losing protons Sharing neutrons

Question 10 of 20

Compounds formed by transfer of electrons are called:

Covalent compounds Ionic compounds Organic compounds Molecular compounds

Question 11 of 20

Ionic compounds generally have:

Low melting points High melting points No melting point Variable melting point

Question 12 of 20

Ionic compounds conduct electricity in:

Solid state only Molten state and aqueous solution Solid and gaseous states Solid state and water

Question 13 of 20

Minerals from which metals can be extracted are called:

Gangue Alloys Ores Salts

Question 14 of 20

Unwanted impurities in ores are called:

Flux Slag Gangue Mud

Question 15 of 20

Conversion of sulphide ore into oxide by heating is:

Calcination Roasting Refining Electrolysis

Question 16 of 20

Conversion of carbonate ore into oxide by heating is:

Roasting Reduction Calcination Smelting

Question 17 of 20

Extraction of highly reactive metals is done by:

Roasting Carbon reduction Electrolytic reduction Calcination

Question 18 of 20

The reaction used to join railway tracks is:

Neutralisation Thermit reaction Combination Decomposition

Question 19 of 20

Rusting of iron requires:

Oxygen only Water only Air and water Carbon dioxide only

Question 20 of 20

Galvanisation is coating iron with:

Tin Copper Zinc Chromium

This post contains 20 important MCQs from Class 10 Science Chapter 3 Metals and Non-Metals with answers and explanations based on NCERT for CBSE exam preparation.

FAQ

Q1. Why is Chapter 3 important in Class 10 Science?
It covers metals, non-metals, and reactions which are frequently asked in exams.
Q2. What are key topics in this chapter?
Physical properties, chemical properties, reactivity series, and extraction of metals.
Q3. Which metal is most reactive?
Potassium is the most reactive metal in the activity series.
Q4. What is galvanisation?
It is the process of coating iron with zinc to prevent rusting.

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Class 10 Science Chapter 3 MCQs with Answers | Metals and Non-Metals

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Download Class 10 Science Chapter 3 MCQs with answers and explanations. Important Metals and Non-Metals questions for CBSE board exam revision.