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MCQ practice · SSC Chemistry Board questions · Chapter 10: Mineral Resources: Metals and Non-metals

Dhaka Board 2025

Concentrated sulfuric acid:

  1. i. is a strong electrolyte
  2. ii. is 18% used to make chemicals
  3. iii. is a dehydrating agent

Think it through first, then pick an option.

  1. a i and ii
  2. b ii and iii
  3. c i and iii
  4. d i, ii and iii
Answer and explanation

Correct answer: c i and iii

ii is false (it should be 28%) and iii is true; this is the only combination without ii and with iii.

Why the other options are wrong

  • a i and ii: ii is false: the pie chart gives chemicals 28%, not 18%.
  • b ii and iii: ii is false: chemicals take 28%; and i is left out.
  • d i, ii and iii: ii is false: 28% goes to making chemicals.