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The molecular formula of a compound is C6H12O6. What’s the empirical formula for this compound?

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in Chemistry – Class 11 by (148k points)
The molecular formula of a compound is C6H12O6. What’s the empirical formula for this compound?

(a) C6H12O6

(b) CHO

(c) C2H6O2

(d) CH2O

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This interesting question is from Percentage Composition topic in chapter Chemistry Basic Concepts of Chemistry – Class 11

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The correct choice is (d) CH2O

For explanation I would say: In the molecular formula of glucose that is C6H12O6, the carbon, hydrogen, and oxygen are in the ratio of 6:12:6 respectively. So by simplifying them into simpler whole numbers, we obtain 1:2:1. Therefore the empirical formula is CH2O.

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