Write true if the statement is true, write false if the statement is false. The C-O-C bonds in ether have a higher bond dipole than the C-0-H bond in alcohol. An ethoxide ion exhibits greater proton-accepting property compared to an ethyloxonium ion. In the Lucas test, the carbocation of n-propyl alcohol is more stable than the carbocation of isopropyl alcohol.
Classes Of Functional Groups
Organic Chemistry deals mostly with carbon and hydrogens, also called hydrocarbons, but those groups which replace hydrogen and bonds with carbon to give a characteristic nature, unique of their own, to the hydrocarbon they are attached to, are called functional groups. All the compounds belonging to a functional group undergo reactions in a similar pattern and are known to have similar physical and chemical properties.
Characteristics Of Functional Groups
In organic chemistry, we encounter a number of special substituent groups which are attached to the hydrocarbon backbone. These groups impart certain characteristics to the molecule of which it is a part of and thus, become the highlight of that particular molecule.
IUPAC Nomenclature
In Chemistry, IUPAC stands for International Union of Pure and Applied Chemistry which suggested a systematic naming approach for the organic and inorganic compounds, as in the beginning stage of nomenclature one single chemical compound was named in many ways by which lead to confusion. The need for this approach aroused as the number of chemical compounds newly discovered were increasing (approximately 32 million compounds) and the basic concept of nomenclature i.e. the trivial nomenclature and the derived system of nomenclature failed to overcome the challenge. It is an important task to name a chemical compound systematically and unambiguously which reduces lots of confusion about the newly reported compounds.
Write true if the statement is true, write false if the statement is false.
- The C-O-C bonds in ether have a higher bond dipole than the C-0-H bond in alcohol.
- An ethoxide ion exhibits greater proton-accepting property compared to an ethyloxonium ion.
- In the Lucas test, the carbocation of n-propyl alcohol is more stable than the carbocation of isopropyl alcohol.
- The brick-red precipitate in Fehling's test is attributed to cuprous oxide (Cu20).
- A ketomethyl group tests positive for the iodoform test via an addition reaction to C-H bonds in the methyl group.
- When n-propyl alcohol undergoes an elimination reaction, the resulting product is an
alkene . - Similar to iodine, the color of iodoform is generally purple or purple-pink.
- As the alkyl chain increases in molecular weight among primary alcohol, the solubility in water increases.
- Phenol is more acidic than cyclohexyl alcohol due to the electron-donating ability of phenolic oxygen.
- In the silver mirror test, the silver ion becomes a silver metal indicating the reduction of the cation.
- The turbidity in the Lucas test is attributed to the resulting
alkyl halide . - Allen's test, also known as the silver mirror test, distinguishes
aldehyde fromketone samples.
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