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Tetrachloroethylene (Perchloroethylene) Definition Tetrachloroethylene, also known as Perchloroethylene (PCE), is a colorless, volatile, nonflammable liquid with a mild, sweet odor. It is an organochlorine compound with the chemical formula C₂Cl₄. This compound is primarily used as a solvent in dry cleaning and for degreasing metals. Structure: Chemical Formula: C₂Cl₄ Molecular Structure: Consists of two carbon … Read more
Introduction of Sachse-Mohr Theory: Sachse and Mohr Theory expanded on the idea of non-planar conformations by proposing a theory specifically for cyclohexane and larger rings. This theory is also known as the Theory of Stainless Rings. Key Concepts of Sachse-Mohr Theory: Chair Conformation: Sachse and Mohr proposed that cyclohexane adopts a chair conformation, where all … Read more
Alkyl halides are versatile compounds in organic chemistry, participating in a variety of chemical reactions that form the backbone of synthetic strategies. Here’s an organized summary of the important reactions involving alkyl halides, including their chemical equations: Nucleophilic Substitution in Alkyl halides chemical reaction SN2 Mechanism: Involves a backside attack by the nucleophile and is … Read more
Trichloroethylene Definition Trichloroethylene is a clear, non-flammable, volatile liquid organic compound with the chemical formula C₂HCl₃. It is primarily used as a degreasing agent for metal parts and has applications in the manufacture of other chemicals. Structure of Trichloroethylene: Chemical Formula: C₂HCl₃ Molecular Structure: Contains a two-carbon backbone with one double bond. One carbon is bonded … Read more
Introduction of Coulson and Moffitt’s Modification: Coulson and Moffitt’s Modification in 1947, modified Baeyer’s theory by introducing the concept of non-planar ring structures, particularly for cyclohexane. Key Concepts: Non-Planar Structures: They proposed that cyclohexane is not planar but rather adopts non-planar structures like the chair and boat conformations, which relieve angle strain. Bond Angle Deformation: Coulson … Read more
Chloroform (Trichloromethane) Definition Chloroform (Trichloromethane), also known by its IUPAC name trichloromethane (CHCl₃), is a colorless, volatile, and sweet-smelling liquid that is non-flammable and heavier than water. It belongs to the class of compounds called halogenated hydrocarbons and is primarily used as a solvent, reagent, and intermediate in the production of various chemicals, especially refrigerants … Read more
Baeyer’s Strain Theory of Cycloalkanes proposed by Adolf von Baeyer in 1885, Baeyer’s Strain Theory is one of the earliest theories explaining the stability of cycloalkanes. Key Concepts of Baeyer’s Strain Theory of Cycloalkanes : Angle Strain: The theory is based on the idea that carbon atoms in a cycloalkane are sp³ hybridized, and therefore, … Read more
Ethyl chloride chloroethane, is a colorless, flammable gas or liquid under pressure with a faintly sweet odor. Ethyl chloride chloroethane is an ethyl group (C₂H₅) bonded to a chlorine atom, giving it the molecular formula C₂H₅Cl. It belongs to the class of compounds known as alkyl halides. Structure of Ethyl Chloride: Chemical Formula: C₂H₅Cl Molecular … Read more
SN1 versus and SN2 reactions comparing the key features: Feature SN1 Reaction SN2 Reaction Kinetics First-order kinetics: Rate = k [alkyl halide] Second-order kinetics: Rate = k [alkyl halide] [nucleophile] Reaction mechanism Two-step mechanism with carbocation intermediate One-step concerted mechanism Order of reactivity of alkyl halides 3° > 2° > 1° > methyl halide methyl … Read more
SN1 and SN2 Reactions Definition SN1 and SN2 are types of nucleophilic substitution reactions. SN1 is a two-step reaction involving a carbocation intermediate and occurs mainly with tertiary halides in polar protic solvents. Its rate depends only on the substrate. SN2 is a one-step, concerted reaction where the nucleophile attacks as the leaving group departs, … Read more
