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MCQ practice · SSC Chemistry Board questions · Chapter 3: Structure of Matter

Dinajpur Board 2021

How many elements are present in the human body?

Think it through first, then pick an option.

  1. a 118
  2. b 98
  3. c 63
  4. d 26
Answer and explanation

Correct answer: d 26

The human body contains 26 different elements in all.

Why the other options are wrong

  • a 118: 118 is the number of all elements discovered so far; the human body holds 26 kinds among them.
  • b 98: 98 is the number of elements found in nature (the board count), not the number in the body; the body has 26 kinds.
  • c 63: 63 is the number of elements known in Mendeleev's time, not the number in the body; the body has 26 kinds.

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