Why are two hydroxyl groups on the same carbon unstable?

This happens because two hydroxyl groups increase electron density on carbon. They can be but are unstable. The instability is a result of high electron-electron repulsion between the two hydroxyl groups.

What is a compound with two OH groups attached to the same carbon?

A geminal diol (or gem-diol for short) is any organic compound having two hydroxyl functional groups (-OH) bound to the same carbon atom. Geminal diols are a subclass of the diols, which in turn are a special class of alcohols. Most of the geminal diols are considered unstable.

Why is carbon unstable?

Explanation: A carbocation is an organic molecule, an intermediate, that has a carbon atom bearing a positive charge and three bonds instead of four. Since the charged carbon atom does not satisfy the octet rule, it is unstable and therefore highly reactive.

When OH group is attached to carbon atom of an aliphatic system it is?

An alcohol contains one or more hydroxyl (OH) group(s) directly attached to carbon atom(s), of an aliphatic system (CH3OH) while a phenol contains –OH group(s) directly attached to carbon atom(s) of an aromatic system (C6H5OH).

Why are hydroxyl groups unstable?

The hydroxyl is the OH group of the organic compound, this is when the oxygen molecule is covalently bonded to the hydrogen atom. Hydroxyl groups are also the differing factor between an RNA compound and a DNA compound. these are found on 2′ carbon sugar on the pentose ring in RNA, and make it unstable.

Which among the following is a compound that has a hydroxyl group bonded to a carbon atom?

alcohol
alcohol, any of a class of organic compounds characterized by one or more hydroxyl (―OH) groups attached to a carbon atom of an alkyl group (hydrocarbon chain).

What is a hydroxyl functional group?

A hydroxy or hydroxyl group is a functional group with the chemical formula -OH and composed of one oxygen atom covalently bonded to one hydrogen atom. In organic chemistry, alcohols and carboxylic acids contain one or more hydroxy groups.

Is carbon stable or unstable?

Carbon-12 is stable, meaning it never undergoes radioactive decay. Carbon-14 is unstable and undergoes radioactive decay with a half-life of about 5,730 years (meaning that half of the material will be gone after 5,730 years).

Why is a carbon atom stable?

Carbon’s ability to form bonds with four other atoms goes back to its number and configuration of electrons. To achieve stability, carbon must find four more electrons to fill its outer shell, giving a total of eight and satisfying the octet rule. Carbon atoms may thus form bonds to as many as four other atoms.

How does OH group attached to a carbon of benzene activates it towards electrophilic substitution reactions?

The -OH group is an electron-donating group. Thus, it increases the electron density in the benzene ring as shown in the given resonance structure of phenol. As a result, the benzene ring is activated towards electrophilic substitution.

Which is a hydroxyl functional group?

Are hydroxyl groups unstable?

Hydroxyl groups are also the differing factor between an RNA compound and a DNA compound. these are found on 2′ carbon sugar on the pentose ring in RNA, and make it unstable. Hydroxyl groups are also in nucleotides to form hydrogen bonds to create the Watson-Crick DNA double helix structure.

What happens when two -OH groups are linked to the same carbon?

Whenever two -OH groups are linked to the same carbon atom, it becomes unstable. Why? It doesn’t occurs in all the cases, but in most of the time we see that elimination of water molecule occurs when 2-OH group are attached to the same carbon.

What is the stability of a compound containing two OH groups?

A compound containing two OH groups attached with one carbon atoms is unstable but C C l3 C H (OH)2 is stable due to intramolecular H bonding. Answer verified by Toppr

Why is C(OH)2 unstable?

As it is exothermic, it is more energetically profitable for the C (OH)2 to dehydrate, and hence it is unstable. Two geminal hydroxy groups are unstable compared to the ketone/aldehyde obtained by dehydration, as has already been answered, unless the carbon is strongly electron-deficient due to the presence of an electron-withdrawing group.

Why does the elimination of water occur in carbonyl compounds?

It doesn’t occurs in all the cases, but in most of the time we see that elimination of water molecule occurs when 2-OH group are attached to the same carbon. In most of the cases it’s due to repulsion between the two OH group lone pairs and steric crowding , elimination of water occurs to give Carbonyl compounds.