answer this question plz,its urgent
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Answer:
the answer is 3)C3H4
PLEASE MARK IT AS A BRAINLIEST ANSWER
Explanation:
just do trail and error method on all of the options and u will get your answer...
the method for it is
the mass percentage of C = (molar mass of carbon in compound) × 100/molar mass of carbon
the molar mass of C3H4 is 40
the mass percentage of C = (molar mass of carbon in compound) × 100/molar mass of carbon
=90%
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