Class 10 · Science · CBSE Board · 2022–2026

Metals and Non-metals — Class 10 Science PYQs

53 questions from this chapter, asked in 5 Class 10 exams between 2022–2026 — every question paper set included, duplicates removed.

53questions

5Class 10 exams

2022–2026years covered

1 / 2 / 3 / 4mark values asked

Questions asked per year

20264 Qs 202514 Qs 202413 Qs 202313 Qs 20229 Qs

Practice questions

Q1MCQ20261 mark

Answer Logic

Which of the following is a poor conductor of electricity ?

(A)Pb

(B)Cu

(C)Ag

(D)Al

Q2MCQ20261 mark

Answer Logic

When an element 'X' reacts with water, it starts floating. Identify the element 'X' :

(A)Potassium

(B)Calcium

(C)Sodium

(D)Iron

Q320262 marks

Answer Logic

(a) What are amphoteric oxides ?
(b) Categorise the following based on their nature :
$ZnO$ , $N a_{2} O$ , $C O_{2}$

Q420264 marks

Answer Logic

Read the following passage and answer the questions given below :

Passage

Most of metals occur in combined state in form of ores. Carbonate ores are converted into oxides by calcination and sulphide ores by roasting. Oxides are reduced with suitable reducing agent like carbon to get free metal. Highly reactive metals like Al, Mg are also used as reducing agents to obtain metal from their oxides. Most reactive metals are obtained by electrolytic reduction of their molten ores. Alloying is a very good method of improving the properties of a metal. We can get desired properties by this method. The electrical conductivity and melting point of an alloy is less than that of pure metals.

(a) Why carbonate or sulphide ores are converted to oxides before extraction of metal from it ?
(b) Write a reaction in which Aluminium is used as a reducing agent to obtain metal from its oxide.
(c) (i) How is copper obtained from its ore ( $C u_{2} S$ ) ? Give equations of the reactions.
OR
(c) (ii) (I) Why highly reactive metals cannot be obtained from their oxides by using carbon as a reducing agent ?
(II) Why solder, an alloy of lead and tin, is used for welding electrical wires together ?

Q5MCQ20251 mark

Answer Logic

The products formed when Aluminium and Magnesium are burnt in the presence of air respectively are :

(A)

A l_{3} O_{4}

and

Mg O_{2}

(B)

A l_{2} O_{3}

and

MgO

(C)

A l_{3} O_{4}

and

MgO

(D)

A l_{2} O_{3}

and

Mg O_{2}

Q6MCQ20251 mark

Answer Logic

Reaction between two elements A and B, forms a compound C. A loses electrons and B gains electrons. Which one of the following properties will not be shown by compound C ?

(A)It has high melting point.

(B)It is highly soluble in water.

(C)It has weak electrostatic forces of attraction between its oppositely charged ions.

(D)It conducts electricity in its molten state or aqueous solution.

Q7MCQ20251 mark

Answer Logic

The metals obtained from their molten chlorides by the process of electrolytic reduction are :

(A)Gold and silver

(B)Calcium and magnesium

(C)Aluminium and silver

(D)Sodium and iron

Q8MCQ20251 mark

Answer Logic

The formation of magnesium oxide is correctly shown in option :

(A)

Mg : \to : O : \to M g^{2 +} [: O :^{2 -}]

(B)

Mg \cdot \to : O : \to M g^{+} [: O :^{-}]

(C)

Mg : + : O : \to M g^{2 +} [: O :^{-}]_{2}

(D)

2M g^{x} \to : O : \to [M g^{2 +}]_{2} [: O :^{2 -}]

Q920253 marks

Answer Logic

(a) "Displacement reactions also play a key role in extracting metals in the middle of the reactivity series." Justify this statement with two examples.
(b) Why can metals high up in the reactivity series not be obtained by reduction of their oxides by carbon ?

Q1020253 marks

Answer Logic

(a) With the help of an activity, explain the conditions under which iron articles get rusted.
OR
(b) (i) Name two metals which react violently with cold water. List any three observations which a student notes when these metal are dropped in a beaker containing water.
(ii) Write a test to identify the gas evolved (if any) during the reaction of these metals with water.

Why practise Metals and Non-metals PYQs?

Metals and Non-metals has appeared in 5 Class 10 Science exams we track between 2022–2026, with questions worth 1, 2, 3, 4 marks. CBSE Board examiners consistently reuse concepts and question patterns from this topic — practising its previous year questions is the most reliable way to know exactly what to expect in your exam.

Metals and Non-metals — Class 10 Science PYQs

Questions asked per year

Practice questions

Why practise Metals and Non-metals PYQs?

Other Science chapters

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Magnetic Effects of Electric Current

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