CBSE Class 10 Chemistry Metals and Non-metals MCQs Set 25

Chemistry Objective Questions and Answers: Metals and Non-metals

Access targeted multiple-choice questions for Metals and Non-metals designed to align with the latest CBSE academic syllabus for Class 10 Chemistry. These objective practice sets help students evaluate their conceptual understanding and improve exam readiness.

Download Metals and Non-metals MCQs with Answers

Access the complete set of multiple-choice questions for Metals and Non-metals below. This focused format allows students to isolate specific topics for thorough review and uninterrupted practice alongside official CBSE textbooks.

Multiple Choice Questions

Question 1: Which metal is liquid at room temperature?
(a) Sodium
(b) Mercury
(c) Iron
(d) Zinc
Show Answer & Explanation

Answer: (b) Mercury

Explanation:
1. Mercury is the only common metal that is liquid at room temperature.

Teacher's Note:
1. Quicksilver.

Question 2: Which metal is stored in kerosene?
(a) Iron
(b) Sodium
(c) Copper
(d) Gold
Show Answer & Explanation

Answer: (b) Sodium

Explanation:
1. Sodium is very reactive and reacts with air and moisture.

Teacher's Note:
1. Highly reactive.

Question 3: Which metals are soft enough to be cut by a knife?
(a) Sodium and potassium
(b) Iron and copper
(c) Gold and silver
(d) Zinc and aluminium
Show Answer & Explanation

Answer: (a) Sodium and potassium

Explanation:
1. Alkali metals are soft.

Teacher's Note:
1. Group 1.

Question 4: The most ductile metal is
(a) gold
(b) iron
(c) lead
(d) zinc
Show Answer & Explanation

Answer: (a) gold

Explanation:
1. Gold can be drawn into very thin wires.

Teacher's Note:
1. Precious metal.

Question 5: Aluminium oxide is
(a) acidic
(b) basic
(c) amphoteric
(d) neutral
Show Answer & Explanation

Answer: (c) amphoteric

Explanation:
1. It reacts with both acids and bases.

Teacher's Note:
1. Both behaviours.

Question 6: Zinc oxide reacts with
(a) only acids
(b) only bases
(c) both acids and bases
(d) neither
Show Answer & Explanation

Answer: (c) both acids and bases

Explanation:
1. \( \ce{ZnO} \) is amphoteric.

Teacher's Note:
1. Same as aluminium oxide.

Question 7: Which metal does NOT react with dilute HCl?
(a) Mg
(b) Zn
(c) Cu
(d) Fe
Show Answer & Explanation

Answer: (c) Cu

Explanation:
1. Copper is less reactive than hydrogen.

Teacher's Note:
1. Below H in series.

Question 8: Which metal reacts violently with cold water?
(a) Fe
(b) Na
(c) Zn
(d) Al
Show Answer & Explanation

Answer: (b) Na

Explanation:
1. \( \ce{2Na + 2H2O -> 2NaOH + H2} \), with enough heat to ignite the hydrogen.

Teacher's Note:
1. Alkali metal.

Question 9: Iron reacts with steam to form
(a) \( \ce{Fe2O3} \)
(b) \( \ce{Fe3O4} \) and hydrogen
(c) \( \ce{FeO} \)
(d) \( \ce{Fe(OH)3} \)
Show Answer & Explanation

Answer: (b) \( \ce{Fe3O4} \) and hydrogen

Explanation:
1. \( \ce{3Fe + 4H2O -> Fe3O4 + 4H2} \).

Teacher's Note:
1. Magnetic oxide.

Question 10: Metal that displaces copper from copper sulphate
(a) Ag
(b) Zn
(c) Au
(d) Hg
Show Answer & Explanation

Answer: (b) Zn

Explanation:
1. Zinc is more reactive than copper.

Teacher's Note:
1. Reactivity order.

Question 11: Correct decreasing order of reactivity
(a) Zn > Fe > Cu > Ag
(b) Cu > Fe > Zn > Ag
(c) Ag > Cu > Fe > Zn
(d) Fe > Zn > Ag > Cu
Show Answer & Explanation

Answer: (a) Zn > Fe > Cu > Ag

Explanation:
1. Reactivity series: K, Na, Ca, Mg, Al, Zn, Fe, Pb, H, Cu, Hg, Ag, Au.

Teacher's Note:
1. Use the series.

Question 12: Ionic compounds have
(a) low melting points
(b) high melting points
(c) no ions
(d) covalent bonds only
Show Answer & Explanation

Answer: (b) high melting points

Explanation:
1. Strong electrostatic forces between ions.

Teacher's Note:
1. Strong attraction.

Question 13: The ionic compound formed from Mg and Cl is
(a) \( \ce{MgCl} \)
(b) \( \ce{MgCl2} \)
(c) \( \ce{Mg2Cl} \)
(d) \( \ce{Mg2Cl2} \)
Show Answer & Explanation

Answer: (b) \( \ce{MgCl2} \)

Explanation:
1. Mg gives 2 electrons to two Cl atoms.

Teacher's Note:
1. Charge balance.

Question 14: Calcination is
(a) heating carbonate ore in limited air
(b) heating in excess air
(c) melting
(d) electrolysis
Show Answer & Explanation

Answer: (a) heating carbonate ore in limited air

Explanation:
1. Used for carbonate ores to give the oxide.

Teacher's Note:
1. Little air.

Question 15: Impure copper is refined by
(a) electrolysis
(b) roasting
(c) calcination
(d) thermite
Show Answer & Explanation

Answer: (a) electrolysis

Explanation:
1. Pure copper deposits on the cathode and impure copper is the anode.

Teacher's Note:
1. Electrolytic refining.

Question 16: Rusting of iron is prevented by
(a) galvanisation
(b) painting
(c) oiling
(d) all of these
Show Answer & Explanation

Answer: (d) all of these

Explanation:
1. They each keep out air or moisture, or coat with zinc.

Teacher's Note:
1. Several methods.

Question 17: Alloy of copper and zinc is
(a) bronze
(b) brass
(c) solder
(d) steel
Show Answer & Explanation

Answer: (b) brass

Explanation:
1. Brass is copper plus zinc.

Teacher's Note:
1. Brass.

Question 18: Amalgam is an alloy containing
(a) mercury
(b) tin
(c) lead
(d) zinc
Show Answer & Explanation

Answer: (a) mercury

Explanation:
1. Mercury alloys are called amalgams.

Teacher's Note:
1. Mercury.

Question 19: Aqua regia is a mixture of
(a) HCl and \( \ce{HNO3} \) in 3:1
(b) HCl and \( \ce{H2SO4} \)
(c) \( \ce{HNO3} \) and \( \ce{H2SO4} \)
(d) HCl and \( \ce{H2O} \)
Show Answer & Explanation

Answer: (a) HCl and \( \ce{HNO3} \) in 3:1

Explanation:
1. Concentrated HCl and \( \ce{HNO3} \) 3:1 dissolve gold and platinum.

Teacher's Note:
1. Royal water.

Question 20: Which non-metal is lustrous?
(a) Iodine
(b) Sulphur
(c) Phosphorus
(d) Nitrogen
Show Answer & Explanation

Answer: (a) Iodine

Explanation:
1. Iodine is a shiny, purple-black solid.
2. The others are dull or gaseous.

Teacher's Note:
1. Think of crystals that shine.

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Multiple Choice Questions (MCQs) for Class 10 Chemistry Metals and Non-metals

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FAQs

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