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Which of the following statement(s) are true about C4H4? Choose one or more: A. The H...

Which of the following statement(s) are true about C4H4? Choose one or more: A. The H atoms are in the same plane, but the C atoms are above and below this plane. B. A molecule of C4H4 does not have delocalized ππ electrons. C. The C atoms are in the same plane, but the H atoms are above and below this plane. D. The hybridization of all C atoms is sp3. E. A molecule of C4H4 has delocalized ππ electrons. F. The hybridization of all C atoms is sp2. G. The C and H atoms are all in the same plane. H. The hybridization of C atoms is a mix of sp2 and sp3 carbon atoms.

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Answer #1

C4H4 is a molecule that contains delocalized ππ electrons where the C and H atoms both lie on the same plane. The structure of C4H4 is as: Here, the first and fourth carbon are sp2 hybridized and the second and third C-atoms are sp hybridized. Therefore, the true statements about C4H4 will be (E) A molecule of C4H4 has delocalised ππ electrons. And (G) The C and H atoms are all in the same plane.

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Answer #2

To add to his answers, (F) The hybridization of all C atoms is Sp2

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