In a sample of ethyl ethanoate (CH3COOC2H5) the two oxygen atoms have the same number of electrons but different number of neutrons. Which of the following is the correct reason for it?
The correct answer is (c) The two oxygen atoms are isotopes. Isotopes of an element have the same number of electrons and protons but different numbers of neutrons. In ethyl ethanoate (CH₃COOC₂H₅), both oxygen atoms belong to the same element but exist as isotopes.
Class 9th Science NCERT MCQ Questions
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(c) The two oxygen atoms are isotopes.
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