The dehydration of ethanol to give ethene Ethanol is heated with an excess of concentrated sulphuric acid at a temperature of 170Â°C. The gases produced are passed through sodium hydroxide solution to remove the carbon dioxide and sulphur dioxide produced from side reactions.
Iran is a multi-ethnic and multicultural country. The northwestern region, Azerbaijan, is largely populated by Iranian Azeris, who are a Turkic people closely related to the people of Azerbaijan republic and Turkey.
Persian is an Iranian language belonging to the Indo-Iranian branch of the Indo-European family of languages. In general, Iranian languages are known from three periods, usually referred to as Old, Middle, and New (Modern) periods.t is an Iranian language and as such, like its modern-day variant, a branch of the Indo-European language family. The oldest known text written in Old Persian is from the Behistun Inscriptions. Examples of Old Persian have been found in what is now present-day Iran, Turkey, Bahrain, Iraq, and Egypt.