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.
Farsi is a member of the Iranian branch of the Indo-Iranian language family; it is the official language of Iran. It is most closely related to Middle and Old Persian, former languages of the region of Fars (Persia) in southwestern Iran. Modern Persian is thus called Farsi by native speakers.