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Social Science (087) — AI-generated practice question

AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.

Q1. [1] medium exam-ready
Gypsum and potash salt are non-metallic minerals formed by a specific geological process. In which type of rock formation are they most commonly found? (A) Igneous rocks formed by the cooling of intrusive magma (B) Metamorphic rocks formed under heat and pressure (C) Sedimentary formations deposited by evaporation in arid regions (D) Alluvial placer deposits in river valleys
  1. A Igneous rocks formed by cooling of magma
  2. B Metamorphic rocks under high pressure
  3. C Sedimentary formations created by evaporation in arid regions
  4. D Placer deposits in valley floors
Generated by claude-sonnet-4-6 · 2026-06-26 13:32 · grounding rag
Model Answer

(C) Sedimentary formations created by evaporation in arid regions

Gypsum and potash salt are sedimentary minerals formed as a result of evaporation, especially in arid regions.

Source: Chapter 5, Mode of Occurrence of Minerals

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Explanation

The passage explicitly states: "Another group of sedimentary minerals include gypsum, potash salt and sodium salt. These are formed as a result of evaporation especially in arid regions." Examiners expect you to directly link these specific minerals to evaporation-formed sedimentary deposits — not to igneous/metamorphic veins or placer deposits.

Previous-year CBSE Grade 10 board exam questions, organised by subject and chapter, each with a model answer — free to read and print.