November 22, 2019 Musaf Karkera. Why is RNA more reactive and unstable than DNA: Definition. A geminal diol has two hydroxyl groups bonded to the same atom.

So, it is the correct answer. - 15586451

Why presence of more than 1 hydroxyl groups on the same carbon atom makes the molecule(of which the carbon atom is a part)unstable? Another example is (F 3 C) 2 C(OH) 2, the hydrated form of hexafluoroacetone. 2-methylpropan-2-ol is a tertiary alcohol.

They include hydroxyl, methyl, carbonyl, carboxyl, amino, phosphate and sulfhydryl. This chapter discusses the glycol compounds, in which two hydroxyl groups are attached to different carbon atoms and their derivatives, in which one or both of the hydroxyl groups are alkylated to form ethers, esterified with organic or inorganic acids, or replaced by thiol or amino groups. organic-chemistry nomenclature carbonyl-compounds.

So, I doubt this would even exist. This kind of compounds automatically transform into ketones, releasing one molecule of water. On the other hand, important biomolecules can be modified by the introduction of oxygen atoms by means of non-oxidative hydroxyl radicals. This will normally mean that the hydroxyl group is joined to the same carbon atom as a branch. Answer. False. Additionally the deoxyribose sugar in DNA is much less reactive than the ribose sugar in RNA.

The presence of acid improves the leaving capacity of the hydroxyl group and enables its substitution with an alkoxyl group (-OR). True. Formed from reaction between an alcohol and an aldehyde or ketone. Sodium is not a functional group and it is an unstable alkali metal.

However, clinical trials with such antioxidants as ascorbic acid and vitamin E, failed to produce the expected beneficial results. In a vicinal diol, the two hydroxyl groups occupy vicinal positions, that is, they are attached to adjacent atoms. Weekly acidic. This substance is unstable, as it has two hydroxyl groups on the same carbon atom. The compounds in which two or three hydroxyl groups are attached to the same carbon atom are unstable and lose water to give aldehydes, ketones, or carboxylic acids. It is generally believed that diseases caused by oxidative stress should be treated with antioxidants. Why two hydroxyl groups cannot present in.Same carbon group? enol Two functional groups attached to the same carbon. explain why alcohols having two or more hydroxy group on the same carbon atom is extremely unstable and immadietly loses water molecules - Chemistry - TopperLearning.com | 5trpdw66 Because of that hydroxyl group on the 2' carbon sugar ... Nucleic acids are directional, meaning that there are two different ends.

A hemiacetal results from nucleophilic attack by the alcohol's hydroxyl group on the carbon of the C=O bond. divided into 2 groups based on the position of the hydroxyl group on the chiral carbon furthest from the carbonyl carbon D (dextro) isomer if the hydroxyl group on the most distant chiral carbon is to the right

And the final compound that I am not sure about is when there are two hydroxyl groups attached to the carbon as well as an oxygen with a double bond.

November 22, 2019 Toppr. As mentioned, a large part of the action caused by the hydroxyl group is due to the electronegativity of the oxygen. carbon atom. Maybe the two hydroxyls are on neighbour atoms (such as 2 and 3). A. Explanation for the correct answer: Option (b) is given as hydroxyl.

Acetals are products of substitution reactions catalyzed by acid.

phenol -OH directly bonded to an aromatic ring. C. Ambiguous. Very weekly acidic. A vicinal diol has two hydroxyl groups on same carbon atoms. Reactions of aldehydes with alcohols produce either hemiacetals (a functional group consisting of one —OH group and one —OR group bonded to the same carbon) or acetals (a functional group consisting of two —OR groups bonded to the same carbon), depending upon conditions.

Usually unstable. What functional groups define the two different ends of a DNA strand? hemiacetal Two functional groups attached to the same carbon. B. The conversion of a hemiacetal to an acetal is an S N 1 reaction. These species arise by hydration of the carbonyl compounds.

Mixing the two reactants together produces the hemiacetal. Ask for details ; Follow Report by Jaindrasingh3229 27.10.2018 Log in to add a comment It’s an alkene and an alcohol. Note : If two or more hydroxyl groups attached to same carbon atom, the compound is usually unstable and lose a molecule of water to give a stable and therefore two or more hydroxyl groups must be present on different carbon atoms. Multiple hydroxyl groups The primary reason involves the relative stability of the two molecules.DNA is more chemically stable than RNA because it lacks the hydroxyl group on the 2' carbon.

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