Multiple choice

Methane is considered as a compound and not a mixture. Which of the following statements is incorrect regarding methane?

  1. It is composed of more than one element.

  2. Its elements are chemically combined.

  3. Its constituents can be separated only by chemical or electrochemical reactions.

  4. Its elements are combined in a variable proportion.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Its elements are combined in a variable proportion.

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