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What are the two isomers of the organic compound C2H4Br2?

Answer 1

You necessarily have a #C-C# bond. How many ways can you arrange the 6 substituents, #4xxH#, and #2xxBr#, around the carbon centres.

You know that each #C# will have the one #C-C# bond (i.e. to each other); there are 2 ways in which the other 6 substituents can be arranged over those 2 carbon atoms. Care to hazard a guess?

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Answer 2

Brooklyn Barber

The two isomers of the organic compound C2H4Br2 are 1,2-dibromoethane (also known as ethylene dibromide) and 1,1-dibromoethane (also known as ethylidene dibromide).

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.