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Q.

Which of the following is an example of an element?

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a

Carbon dioxide

b

Oxygen

c

Water

d

Common salt

answer is B.

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Detailed Solution

  • Elements are the basic form of matter that cannot be broken down into simpler substances by chemical reactions. 
  • Carbon dioxide, water, and common salt are examples of compounds that are made up of elements.
  • So out of the given options only oxygen is an example of an element.
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