0
Aromatic compounds have a lower hydrogen percentage than aliphatic compounds which means they have a high carbon content producing a smoky sooty flame when burning
Wiki User
∙ 14y ago
Wiki User
∙ 11y agodue to high content of carbon in them......
Add your answer:
Earn +20 pts
What is the difference between alkyl and aryl groups?
Aryl groups are aromatic compounds and have -I effect whereas alkyl groups are mom aromatic compounds with +I effect
Why many aromatic hydrocarbons do not have any odor while compounds that have a pleasant odor do not have aromatic rings?
when aromatic compounds were first discovered they were called aromatic due to their plesant odours but as you have rightly pointed out compouns such as diatomic hydrogen have pleasant smells its is becuase of this that the meaning of aromaticity changed as aromatic compounds are saturated stable compounds its the notion of delocalised electrons that defines a aromatic compound now as this enhances the stabilty of the compound so chemically aromatic and aromatic are not particularly synoynymous any more in fact chemical aromacity has very little to do with aromacity and ewhat it does to the oliafactory centres that gives us the perception of smell
Why anti aromatic or non aromatic systems or compounds are unstable?
Their orbitals unsymmetry make them unstable.
What is a simple test to distinguish between an aliphatic compound and an aromatic compound?
Huckels rule. 4n + 2 whereby n is any integer for example 1,2,3 etc. Aromatic compounds will obey huckels rule:- (4 x (1)) + 2 = 6 (4 x (2)) + 2 = 10 (4 x (3)) + 2 = 14 Taking benzene as an example...is it aromatic? Is a six membered ring with 3 double bonds, so 6pi electrons thus obeys huckels rule and is aromatic. Negative charges also count as 2pi electrons and positive charges on a molecule are ignored entirely.
What types of aromatic compounds will couple with an aromatic diazonium salt?
activated rings of phenol and aromatic amines-- that is based from the manual. you can read it if you like...
What compound burns with a black flame?
The organic compounds having high ratio of carbon burn with black smoke (SOOT) as Aromatic compounds for example Benzene, C6H6.
Why aromatic compounds have high chemical shift valure?
Why aromatic compounds have high chemical shift valure?
Why aromatic diazo compounds are more stable than aliphatic diazo compounds?
aromatic diazo compounds are stabilize by resonance where as in alifati it is not found
Why anti aromatic compounds have unpaired electrons?
Not all the anti aromatic compounds have the unpaired electrons, for example cycloocta tetraene
Is an aromatic compound any compound that has a distinct color?
It is false; aromatic compounds is a category of organic compounds with specific odor or color.But many other chemicals have a specific odor or color but they are not aromatic compounds (of course, in the chemical sense).
Where are aromatic compounds usually found?
The aromatic compounds or benzene is mostly found in plant and tree oils. The compound is gathered by coal distillation.
An aromatic compound is any compound what has a distinct odor?
It is false; aromatic compounds is a category of organic compounds.But many other chemicals have a specific odor but they are not aromatic compounds (of course, in the chemical sense).
What is the difference between alkyl and aryl groups?
Aryl groups are aromatic compounds and have -I effect whereas alkyl groups are mom aromatic compounds with +I effect
Why many aromatic hydrocarbons do not have any odor while compounds that have a pleasant odor do not have aromatic rings?
when aromatic compounds were first discovered they were called aromatic due to their plesant odours but as you have rightly pointed out compouns such as diatomic hydrogen have pleasant smells its is becuase of this that the meaning of aromaticity changed as aromatic compounds are saturated stable compounds its the notion of delocalised electrons that defines a aromatic compound now as this enhances the stabilty of the compound so chemically aromatic and aromatic are not particularly synoynymous any more in fact chemical aromacity has very little to do with aromacity and ewhat it does to the oliafactory centres that gives us the perception of smell
Why anti aromatic or non aromatic systems or compounds are unstable?
Their orbitals unsymmetry make them unstable.
True or false an aromatic compound is any compound that has a distinict odor?
It is false; aromatic compounds is a category of organic compounds.But many other chemicals have a specific odor but they are not aromatic compounds (of course, in the chemical sense).
What is a simple test to distinguish between an aliphatic compound and an aromatic compound?
Huckels rule. 4n + 2 whereby n is any integer for example 1,2,3 etc. Aromatic compounds will obey huckels rule:- (4 x (1)) + 2 = 6 (4 x (2)) + 2 = 10 (4 x (3)) + 2 = 14 Taking benzene as an example...is it aromatic? Is a six membered ring with 3 double bonds, so 6pi electrons thus obeys huckels rule and is aromatic. Negative charges also count as 2pi electrons and positive charges on a molecule are ignored entirely.
