Which formula represents Ethene?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $9.99Unlock all

Prepare for the IGCSE Edexcel Chemistry Test with engaging flashcards and multiple-choice questions. Each question comes with detailed hints and explanations to enhance your learning experience. Master your exam with confidence!

Multiple Choice

Which formula represents Ethene?

Explanation:
Ethene is an unsaturated hydrocarbon with a carbon–carbon double bond. For alkenes, the general pattern is CnH2n, and with two carbons that gives C2H4. Structurewise, each carbon forms two C–H bonds and a C=C double bond between the two carbons, giving a total of four hydrogens. That’s why C2H4 is the correct formula. The other options don’t fit ethene: C2H6 would be ethane, a fully saturated alkane with single bonds; CH4 is methane, a single-carbon molecule; C3H6 would correspond to a three-carbon hydrocarbon such as propene, not ethene.

Ethene is an unsaturated hydrocarbon with a carbon–carbon double bond. For alkenes, the general pattern is CnH2n, and with two carbons that gives C2H4. Structurewise, each carbon forms two C–H bonds and a C=C double bond between the two carbons, giving a total of four hydrogens.

That’s why C2H4 is the correct formula. The other options don’t fit ethene: C2H6 would be ethane, a fully saturated alkane with single bonds; CH4 is methane, a single-carbon molecule; C3H6 would correspond to a three-carbon hydrocarbon such as propene, not ethene.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy