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Chemistry

The maximum number of isomers for an alkene with molecular formula C4H8

Note by Divyansh Singhal
3 years, 8 months ago

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Four. They are methyl-propene (or isobutene), cis 2-butene, trans 2-butene and 1-butene (or simply butene). Guilherme Dela Corte · 3 years, 8 months ago

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@Guilherme Dela Corte Can there be any cyclic isomers for this compound? Abhimanyu Swami · 3 years, 8 months ago

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@Abhimanyu Swami Yes, but he specifies what kinds of isomers he wants (alkenes). C4H8 would be a cyclic alkane. Guilherme Dela Corte · 3 years, 8 months ago

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@Guilherme Dela Corte And those would be cyclobutane and methyl cyclopropane. Siyu Bu · 3 years, 8 months ago

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@Siyu Bu Yes, but he specifies what kinds of isomers he wants (alkenes). Guilherme Dela Corte · 3 years, 8 months ago

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@Guilherme Dela Corte Yeah yeah totally agreed with you just was trying to add sth.:-) Siyu Bu · 3 years, 8 months ago

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@Guilherme Dela Corte however, cycloalkane is an isomer of alkene with same molecular formula. i think we have to consider all types of isomerism. Razik Ridzuan · 3 years, 8 months ago

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@Guilherme Dela Corte Quite fast at chemistry. Good!!! Shubham Kumar · 3 years, 8 months ago

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C4H8 have 4 isomers Shobhit Mishra · 3 years, 8 months ago

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Isn't this a question of NSEJS??? Jitesh Mittal · 3 years, 8 months ago

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@Jitesh Mittal Yes,how much you are scoring in NSEJS ? Divyansh Singhal · 3 years, 8 months ago

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@Divyansh Singhal Arent u the one who got state rank 1 in IMO?? Jitesh Mittal · 3 years, 8 months ago

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@Divyansh Singhal 140 and if this answer ( I have done 4) is correct then 143 and what about you... We will have a common cutoff of Rajasthan... Jitesh Mittal · 3 years, 8 months ago

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6 including the 2 cyclic isomers Dharma Teja · 3 years ago

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which one ..structural or all? Akshu Gupta · 3 years, 8 months ago

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but-1-ene, but-2-ene, cyclobutane, methylcyclopropane, cis-2-butene, trans-2-butene Cody Martin · 3 years, 8 months ago

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@Cody Martin He clearly specifies: he only wants the alkenes. Guilherme Dela Corte · 3 years, 8 months ago

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@Guilherme Dela Corte oh sorry there are 5 isomers then but-1-ene, but-2-ene, 2-methyl propene, cis-2-butene, trans-2-butene, Cody Martin · 3 years, 8 months ago

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C4H8 have 3 isomer, they are : H2C = CH – CH2– CH3 1-butena H3C - CH = CH– CH3 2-butena H2C = C – CH3 2-metilpropena I CH3 Syarifuddin Hidayatullah · 3 years, 8 months ago

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@Syarifuddin Hidayatullah What about cis/trans isomers of 2-butene? Also I think you've wronged when writing methyl-propene's formula. Guilherme Dela Corte · 3 years, 8 months ago

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