CBSE Class 10 Science sample paper 2024-25: question 2
From the official CBSE sample question paper for 2024-25, section A, question 2, for 1 mark. Try it first; the hints and our step-by-step solution are below.
Q2 · 1 mark · MCQMetals and Non-metals
Match column I with column II and select the correct option using the given codes.
| Column I | Column II |
|---|---|
| a. A metal that forms amphoteric oxides | (i) Ga |
| b. A metal which melts when kept on our palm | (ii) Au |
| c. A metal that reacts with nitric acid | (iii) Al |
| d. A metal which cannot displace hydrogen from acids | (iv) Mn |
- (A)a – (ii), b – (i), c – (iii), d – (iv)
- (B)a – (iii), b – (i), c – (iv), d – (ii)
- (C)a – (iv), b – (ii), c – (iii), d – (i)
- (D)a – (iii), b – (ii), c – (i), d – (iv)
Source: official sample paper from cbseacademic.nic.in (PDF). See it in the full Sample paper 2024-25.
Hints
Open one hint at a time and try again before the next.
Hint 1
Which metal oxide reacts with both acids and bases?
Hint 2
Recall the metals that are exceptions with nitric acid, and the metals placed below hydrogen in the reactivity series.
Step-by-step solution
Each step shows the marks it earns, as an examiner would award them. Checked by an independent re-solve from the question paper.
- ½ mark
(a) Aluminium forms the amphoteric oxide , so a matches (iii). (b) Gallium has a very low melting point and melts on the palm, so b matches (i).
- ½ mark
(c) Manganese reacts with very dilute nitric acid to give , so c matches (iv). (d) Gold lies below hydrogen in the activity series and cannot displace it from acids, so d matches (ii). The correct option is (B).
Answer: a–(iii), b–(i), c–(iv), d–(ii); option (B)
Where the marks are
- Correctly matches all four pairs, giving option (B) (1 mark)
Revise the chapter
- Chapter: Metals and Non-metals (notes, formulas, where marks are lost and every past question)
- Topic: Chemical Properties of Metals
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