Question

Gem-dibromide is
A. \[C{H_3}CB{r_2}C{H_3}\]
B. \[C{H_2}BrC{H_2}Br\]
C. \[C{H_2}(Br)C{H_2}C{H_2}\]
D. None of these

Answer 1

Hint: The connection between the two atoms or the functional groups that is attached to the same atom, it is referred to as a "gem.". The Latin root of the word gem means "twins." Methan-diol is an example of a gem diol which is a molecule that having the two alcohol functional groups connected to the same carbon atom. Additionally, the shorter prefix gem may be used to indicate this connection before a chemical name, as in a gem-dibromide.

Complete step-by-step answer:In order to know that the two halide groups must be situated on the same carbon atom naming as \[1,1\] connection for geminal dihalides also exist.
\[1,1\] Dibromoethane is another name for Gem-ethyl dibromide. It has a \[1,1\] connection because it has two bromine atoms on a single carbon atom. It is hence geminal dihalide.
In short, when the two functional groups or atoms that are attached with the same carbon atom, this condition is called geminal dihalide.



Dichloromethane is another name for methylidene dichloride. It has a connection because it has two Cl-atoms attached to the same carbon atom. It is hence geminal dihalide.



\[2,2\] Dibromopropane(\[C{H_3}CB{r_2}C{H_3}\]) is another name for isopropylidene dibromide. It has a \[2,2\] connection because it has two bromine atoms on the same carbon atom. It is hence geminal dihalide.



Option ‘A’ is correct

Note: It should be noted that the term "geminal" describes the bond between two atoms or functional groups that are joined to the same atom. A gem-dibromide, which stands for "geminal dibromide," is another way to denote this link before a chemical name. Because functional groups that are connected to the same atom frequently behave differently than when they are separated, synthesis and spectroscopy are being included. For instance, geminal diols readily undergo the water-loss conversion to ketones or aldehydes.