FeCl3 is a Lewis acid. because it can accept an electron pair from a Lewis base.

+1 charge

In table salt, sodium chloride, sodium is the cation (Na+) and chloride is the anion (Cl-).

The ferric chloride test is used to determine the presence of phenols in a given sample or compound (for instance natural phenols in a plant extract). Enols, hydroxamic acids, oximes, and sulfinic acids give positive results as well.

Its electron configuration is [Ar]4s23d6 . It has eight valence electrons. In FeCl3 , the three Cl atoms contribute three more valence electrons to make a total of 11. The Fe atom can easily accept more electrons from an electron-pair donor.

FeCl3 is a fairly strong Lewis acid, in which Fe exhibits 5 electrons in d-orbital and 0 electron in s-orbital.

Aluminum chloride (AlCl3) is a Lewis acid because the aluminum atom has an open valence shell. When aluminum chloride is under discussion it is called a Lewis acid or an electrophile.

The correct option is: b C2H4 Explanation:In BF3 and FeCl3 molecules the central atoms have incomplete octet and in SiF4 the central atom has empty d-orbitals. Hence according to Lewis concept these are Lewis acids.

Is CO2 a Lewis acid or base? Ans. CO2 is a Lewis acid since it has a slightly positive charge on the C atom, due to significant electronegativity difference with oxygen, and can attract electrons.

C2H4 is a Lewis base due to availability of electons as a pi bond.

Carbon accepts a pair of electrons, so CO2 is the Lewis acid. The chloride ion contains four lone pairs. In this reaction, each chloride ion donates one lone pair to BeCl2, which has only four electrons around Be.

(A) B(CH3)3 Is a Lewis acid because it can accept a lone pair as we know that Lewis acids can accept the lone pair and have vacant orbital. Lewis found that an electron pair which acts as an acceptor is called acid and an electron pair which acts as a donor is called a base.

Methylene

In organic chemistry, a methylene group is any part of a molecule that consists of two hydrogen atoms bound to a carbon atom, which is connected to the remainder of the molecule by two single bonds.

methylene. [ mĕth′ə-lēn′ ] n. A bivalent hydrocarbon radical, CH2, that is a component of unsaturated hydrocarbons and is derived from methane by the removal of two hydrogen atoms.

Methylidyne radical

With methenyl you form a radical ? Methylene is a CH2 in the middle of a carbon chain. For example in propane the center carbon is a methylene. Methenyl is HC= connected to something, so the carbon in propene would be an example of this.

What is the difference between methylene and methylidene? – Quora. methylene is disubstituted methane, so it is CH2X2 instead of CH4… so methylene dichloride is CH2Cl2. Methylidene is a compound that has CH2= group as a substituent in a carbon chain.

Examples of compounds which contain methylene bridges include:

• Malonic acid.
• Acetylacetone.
• Malononitrile.

In chemistry, a methine group or methine bridge is a trivalent functional group =CH−, derived formally from methane. It consists of a carbon atom bound by two single bonds and one double bond, where one of the single bonds is to a hydrogen.

This functional group, which consists of a carbon atom which is bonded to a hydrogen atom and double-bonded to an oxygen atom (chemical formula O=CH-), is called the aldehyde group. The aldehyde group is also called the aldo, formyl or methanoyl group….The Concept of Functional Groups.

carboxyl

Alcohols contain the hydroxy functional group (-OH), bonded to a carbon atom of an alkyl or substituted alkyl group. The functional group of an alcohol is the hydroxyl group, –OH. The electronegativity of oxygen is substantially greater than that of carbon and hydrogen.