GK
GENERAL SCIENCE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
sulphur
|
|
|
fluorine
|
|
|
bromine
|
|
|
chlorine
|
Detailed explanation-1: -The chemical (ethyl mercaptan) added to the otherwise odourless LPG cooking gas for imparting a detectable smell to the gas is a compound of sulphur.
Detailed explanation-2: -Ethanethiol, commonly known as ethyl mercaptan, is a clear liquid with a distinct odor. It is an organosulfur compound with the formula CH3CH2SH. Abbreviated EtSH, it consists of an ethyl group (Et), CH3CH2, attached to a thiol group, SH. Its structure parallels that of ethanol, but with sulfur in place of oxygen.
Detailed explanation-3: -In the case of LPG, the Ethyl Mercaptan is added to the gas as it leaves the main storage terminals. The amount added and the process are both carefully controlled. The terminals themselves have gas detectors that can identify gas leaks without any odourant having been added.