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Two metals zinc and tin are… (Class 10 Science 2025, Q5)

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ScienceCBSE Class 10 · Board exam 2025, set 31/2/1 · 1 mark · MCQ

CBSE Class 10 Science 2025: question 5

Set in the CBSE Class 10 board exam of 2025, paper 31/2/1, section A, question 5, for 1 mark. Try it first; the hints and our step-by-step solution are below.

Q5 · 1 mark · MCQMetals and Non-metals

Two metals zinc and tin are dissolved separately in definite proportions in molten copper (the primary metal) to obtain two different alloys respectively known as :

  1. (A)Bronze and Brass
  2. (B)Brass and Solder
  3. (C)Brass and Bronze
  4. (D)Solder and Bronze

Source: official question paper from cbse.gov.in (PDF). See it in the full 2025 board paper, set 31/2/1.

Hints

Open one hint at a time and try again before the next.

Hint 1

Recall which alloy is Cu + Zn and which is Cu + Sn.

Hint 2

Keep the order of the metals as given in the question.

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.

  1. Brass is an alloy of copper and zinc.

  2. Bronze is an alloy of copper and tin. (Solder is lead and tin, so it does not fit.)

  3. The question takes zinc first and tin second, so the order is Brass, Bronze: (C).

    1 mark

Answer: (C) Brass and Bronze

Where the marks are

  • Chooses Brass and Bronze in the correct order, option (C) (1 mark)

Revise the chapter

Practise this chapterBoard-style questions from Metals and Non-metals, one at a time, marked against the answer key and marking points.Back to the full paper2025 board paper, set 31/2/1: every question, by section.

The question is transcribed from the official paper; figures are described in words. The solution, hints and chapter tag are ours. Spotted an error? Write tosupport@questionbuddy.in.