In its chemical behaviour, naphthalene shows the aromatic character associated with benzene and its simple derivatives. Its reactions are mainly reactions of substitution of hydrogen atoms by halogen atoms, nitro groups, sulfonic acid groups, and alkyl groups.
Why naphthalene shows sp2 sp2 hybridization?
The concept of aromaticity extends to compounds that contain two or more “fused” rings, so called because two carbon atoms are common to two rings. All carbon atoms in naphthalene, anthracene, and phenanthrene are sp2 hybridized. All atoms in the rings, as well as those directly attached to the rings, are coplanar.
What is the general formula for aldehydes and ketones?
The generic condensed formula for aldehydes is RCHO (CHO is our aldehyde CHUM) and RCOR’ for ketones (no cute memorization aid – if you have one please share it.)
What is the molecular formula for naphthalene?
C10H8Naphthalene / Formula
What happens when naphthalene is added to water?
Naphthalene is insoluble in water because it is non-polar. This means that it cannot participate in dipole-dipole interactions or hydrogen bonding…
Why is boron sp2 hybridized?
For boron to bond with three fluoride atoms in boron trifluoride (BF3), the atomic s- and p-orbitals in boron’s outer shell mix to form three equivalent sp2 hybrid orbitals. In an ethene molecule, a double bond between carbons forms with one sigma and one pi bond.
Is naphthalene a solid or liquid?
Physical / Chemical Properties: Naphthalene is a white crystalline or colorless to brown solid. Naphthalene has a distinct aromatic odor. Vapor pressure1: 0.087 mmHg.
What functional groups are present in aldehydes and ketones?
Aldehydes and ketones are organic compounds which incorporate a carbonyl functional group, C=O. The carbon atom of this group has two remaining bonds that may be occupied by hydrogen or alkyl or aryl substituents.
What is the difference between pentanone and aldehydes and ketones?
Ketone does not have a hydrogen atom attached to the carbonyl group. Propane is generally written as CH3COCH3. In pentanone, the carbonyl group could be in the middle of the chain or next to the end – giving either pentan-3-one or pentan-2-one. Aldehydes and Ketones are often called as methanoyl or formyl group.
What happens when aldehydes and ketones react with 2-4-dinitrophenylhydrazine?
Aldehydes and ketones react with 2,4-dinitrophenylhydrazine give a yellow to orange precipitate. The chemical reaction is given below. Note: Formation of orange-yellow crystals indicates the presence of carbonyl group.
How many hydrocarbon groups are there in a ketone?
In ketones, the carbonyl group has 2 hydrocarbon groups attached to it. These can be either the ones containing benzene rings or alkyl groups. Ketone does not have a hydrogen atom attached to the carbonyl group.
