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Q.

Which of the following is not an example of an element?

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a

Gold

b

Carbon dioxide

c

Silicon

d

Oxygen

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. 
  • Gold, oxygen, and silicon are examples of elements. 
  • Carbon dioxide is the compound of two elements carbon and oxygen mixed in a fixed proportion of 3:8. 
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Which of the following is not an example of an element?