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An organic compound containing C, H and O gave on analysis C = 40% and H = 6.66%. Its empirical formula would be:

1. C3H6O
2. CH2O
3. CH4O
4. CH2O

Correct answer: CH2O

Solution

To determine the empirical formula, calculate the moles of each element using their percentages and atomic masses. For C (40/12), H (6.66/1), and O (53.34/16), the mole ratio simplifies to CH2O.

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