Which of the following is an element?A. Oxygen gasB. Carbon dioxide ga – InterviewSolution

1.	Which of the following is an element?A. Oxygen gasB. Carbon dioxide gasC. Sulphur dioxide gasD. Nitrogen dioxide gas
Answer» Elements are pure substances which cannot be further broken down into simpler substances. Carbon dioxide gas, sulphur dioxide gas, nitrogen dioxide gas are examples of compounds and they can be further broken down into elements by chemical reactions.

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