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How can i easily identify which is keton and which is ether?

2006-09-01 08:14:25 · 5 answers · asked by star123 2 in Science & Mathematics Chemistry

5 answers

Ketones have one atom of oxygen double bounded to one atom of secondary carbon (i.e. an atom of carbon that is bounded to two other carbon atoms). Ethers have one atom of oxygen single-bounded to two atoms of carbon:

ketone: - H2C - C - CH2 -
........................II
.......................O

ether: - CH2 - CH2 - O - CH2 -

2006-09-01 08:22:31 · answer #1 · answered by Syaoran 3 · 0 0

A easier way is to count the # of hydrogen atom if you only got the molecular formula rather the structural formula. Ketone has a double bond, it's unsaturated.

If the number of carbon in the compound is n [n>1], then

If the number of hydrogen equals 2n, it's a ketone; if it's 2n+2, it's a ester.

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This method can only distinguish long chain or branched ketone [containing only carbonyl group] from saturate ethers. If other functional groups also present or the compound could be cyclic, it's no guarantee it will work. You need to see the structural formula to make sure.

2006-09-01 18:23:51 · answer #2 · answered by nickyTheKnight 3 · 0 0

Keton has a double bond to oxygen

the ether has a single bond to oxygen

do a search.

2006-09-01 15:19:42 · answer #3 · answered by Roy G. Biv 3 · 0 0

Ketone RCOR'
Ether ROR'

R = some group such as methyl or ethyl

2006-09-01 15:29:01 · answer #4 · answered by Kat B 3 · 0 0

Exactly what Roy G. Biv said.

2006-09-01 16:27:42 · answer #5 · answered by sulak321 4 · 0 0

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