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Questions tagged [isomers]

Compounds that have identical molecular formula but different chemical structure.

Isomers are mostly common amongst hydrocarbons, where the amount of hydrogen and carbon can be the same, yet the structure is different.

Example:

Allene and propyne have both molecular formula $\ce{C3H4}$.

AllenePropyne 

      Allene                 Propyne
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Melting point and boiling point in isomers

We know, that cis isomers are less stable than trans isomers. What I don't get is why the boiling point is changing as opposed to the melting point. The change is melting point makes sense to me considering the stability. Also the difference of mp…
Rafat
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Separating alkane/alkene isomers on the GC but the isomers have the same retention time

I'm trying to differentiate between n-octane, 3-octene, and 4-octene from a mixed sample using gas chromatography, but n-octane and 3-octene seem to have the same signal and 4-octene is shouldering the n/3 peak. Does anyone have suggestions for a…
Lia Kim
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Are these metamers, if not why?

Please tell me if these are metamers ie Metamerism: In Chemistry the type of isomerism in which chemical compounds have identical proportions of the same elements and the same molecular weight, but have radicals differing in type or position, with…
Shambo Basu
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How do you figure out the positional and chain isomer possibilities of a compound?

I need to figure out the chain and positional isomers of C4H7Cl. I am not looking for someone to directly give me the answer, I just want to know what steps are needed to be able to figure them out for a given compound. This is different to my prior…
Tom
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how is there no centre of symmetry in this case?

the question was whether the following compounds have the center of symmetry or not .the question was : And the answer is that there is no center of symmetry .how? according to me, there should be the centre of symmetry. I have made it like…
Garima Singh
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Isomerism in amide and nitrile aldehyde

I have the following question, The given answer is c but I have trouble understanding why a would not be a correct answer. Because from my understanding in part a, one is amide functional group and the other is aldehyde with a -Nh2 nitrile group…
Daksh Shah
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Interchangeable isomers

I am a clinical research professional. I have a question regarding clinical chemistry. I would like to know that whether it is possible to get testosterone undecanoate from ursolic acid and vice-versa by the mean of specific chemical reaction or…
Niaz
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isomerism-position versus chain

For nitriles carbon of nitrile group is part of the carbon chain. So what is the isomerism shown by pentanenitrile and 2-methylbutanentrile? Chain isomerism or position isomerism?
Nandakumar U K
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Just to Clarify for the Isomers of C5H12O

Are these the isomers to $\ce{C5H12O}$? If so what makes them so different from each other? pentanol 2-pentanol 3-pentanol 3-methyl-2-butanol 2-methylbutanol methyl butyl ether methyl isobutyl ether methyl-t-butyl ehter methyl-s-butyl…
idk wat else
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