Questions and answers

What do you mean by substituent group?

What do you mean by substituent group?

A substituent is one or a group of atoms that replaces (one or more) hydrogen atoms on the parent chain of a hydrocarbon, thereby becoming a moiety in the resultant (new) molecule.

How do you identify substituent groups?

Substituents are named in the same manner as the parent chains, except that instead of ending with the suffix –ane they end with the suffix –yl, which indicates that the group is a substituent off the main chain.

What is substituent and functional group?

The key difference between functional group and substituent is that the functional group is an active part of a molecule whereas substituent is a chemical species that can replace an atom or a group of atoms in a molecule. A functional group is a specific type of substituent which causes the activity of a molecule.

What does substituent mean?

: an atom or group that replaces another atom or group in a molecule.

Are all substituents functional groups?

I would say that all functional groups are substituents, but not all substituents are functional groups. The term “Functional group” should be used when the group is reactive and can therefore be used to functionalize the molecule further (for example, alcohol, ketone, alkene, etc).

What is meant by a functional group?

In organic chemistry, a functional group is a specific group of atoms or bonds within a compound that is responsible for the characteristic chemical reactions of that compound. The atoms of a functional group are linked together and to the rest of the compound by covalent bonds.

What are 4 Methyls called?

If the molecule has three methyl groups coming off the parent chain, the substituent name is trimethyl, if it has four methyls, the name is tetramethyl, if it has five methyls, the name is pentamethyl, and so on.

How do you identify a carboxyl group?

Carboxyl groups are functional groups with a carbon atom double-bonded to an oxygen atom and single bonded to a hydroxyl group. The molecular formula is COOH. Carboxyl groups missing a hydrogen atom are de-protonated and ionized. Ionized carboxyl groups act as acids, require less energy and are more stable.

What is functional group example?

Functional groups are collections of atoms that attach the carbon skeleton of an organic molecule and confer specific properties. Functional groups include: hydroxyl, methyl, carbonyl, carboxyl, amino, phosphate, and sulfhydryl.

Is functional group a substituent?

In organic chemistry, a functional group is a substituent or moiety in a molecule that causes the molecule’s characteristic chemical reactions. The same functional group will undergo the same or similar chemical reactions regardless of the rest of the molecule’s composition.

What is meant by hydroxyl group?

1 : the chemical group, ion, or radical OH that consists of one atom of hydrogen and one of oxygen and is neutral or negatively charged.

Is a functional a group?

Some of the common functional groups are hydroxyl, present in alcohols and phenols; carboxyl, present in carboxylic acids; carbonyl, present in aldehydes, ketones, and quinones; and nitro, present in certain organic nitrogen compounds. …

Which is the best definition of a substituent group?

An atom or group substituted for another in a chemical compound. Of or relating to such an atom or group. [Latin substituēns, substituent-, present participle of substituere, to substitute; see substitute .] American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company.

What does the word substituent mean in chemistry?

In chemistry, a substituent is the atom or atom group that gets replaced. Here we have assumed the substituent groups to be alike; when they are unlike, a greater number of isomers is possible. What Do “a.m.” And “p.m.” Stand For?

Which is an algebraic subgroup of an algebraic group?

An algebraic subgroup of an algebraic group is a Zariski-closed subgroup. Generally these are taken to be connected (or irreducible as a variety) as well. Another way of expressing the condition is as a subgroup which is also a subvariety.

Which is the best definition of degree of substitution?

The degree of substitution is the average number of substituent groups attached per base or monomeric unit. The antibacterial and antifungal activity results were thought to be exerted through a target because the introduction of the substituent groups on the indole caused differences in the activity.