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"Minerals occur in… (Class 10 Social Science 2024, Q22a)

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Social ScienceCBSE Class 10 · Board exam 2024, set 32/5/1 · 2 marks · Very short answer

CBSE Class 10 Social Science 2024: question 22(a)

Set in the CBSE Class 10 board exam of 2024, paper 32/5/1, section B, question 22(a), for 2 marks. Try it first; the hints and our step-by-step solution are below.

Q22(a) · 2 marks · Very short answerMinerals and Energy Resources

"Minerals occur in igneous and metamorphic rocks." Explain the statement with example.

Source: official question paper from cbse.gov.in (PDF). See it in the full 2024 board paper, set 32/5/1.

Hints

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

Hint 1

Where in the rock do these minerals lie?

Hint 2

How do molten minerals reach the cracks? Name some metals formed this way.

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. In igneous and metamorphic rocks, minerals occur in cracks, crevices, faults or joints. Smaller occurrences are called veins and larger ones are called lodes.

    1 mark

  2. They form when minerals in molten or gaseous form are forced upward through cavities towards the earth's surface, then cool and solidify. Examples: tin, copper, zinc and lead.

    1 mark

Answer: Minerals are found as veins and lodes in cracks and joints of igneous and metamorphic rocks, e.g. tin, copper, zinc and lead.

Where the marks are

  • Occur in cracks, crevices, faults, joints as veins and lodes (1 mark)
  • Formed by molten/gaseous minerals forced upward and solidifying; examples such as copper, zinc, lead (1 mark)

Revise the chapter

Practise this chapterBoard-style questions from Minerals and Energy Resources, one at a time, marked against the answer key and marking points.Back to the full paper2024 board paper, set 32/5/1: 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.