MCQ practice · SSC Chemistry Board questions · Chapter 3: Structure of Matter
How many elements are found in nature?
Think it through first, then pick an option.
- a 26
- b 63
- c 98
- d 118
Answer and explanation
Correct answer: c 98
The board key is 98: of 118 elements, 98 are found in nature and the other 20 are made in the laboratory. The English version prints 98 and the Bangla book 94; in reality it is 94.
Why the other options are wrong
- a 26: 26 is the number of elements in the human body, not the number found in nature.
- b 63: 63 is the number of elements known in Mendeleev's time; more are found in nature.
- d 118: 118 is all the elements discovered so far, some of them made in the laboratory; fewer are found in nature.
More board questions on this topic
- Which is an element?
- Which is a compound?
- What is the name of the smallest particle of an element?
- How many different kinds of elements are there in the human body in…
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