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Which of the following cannot be an empirical formula?

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in Chemistry – Class 11 by (148k points)
Which of the following cannot be an empirical formula?

(a) NH3

(b) C5H10

(c) H2O

(d) NaCl

I have been asked this question during an interview for a job.

My doubt stems from Percentage Composition in chapter Chemistry Basic Concepts of Chemistry – Class 11

1 Answer

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Best answer
The correct option is (b) C5H10

For explanation: C5H10 cannot be an empirical formula because of the carbon and hydrogen ratio in this compound is  5:10 respectively. They are not in the simplest possible whole numbered ratio (1:2 is the simplest for this compound). Hence it cannot be an empirical compound.

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