Organic Chemistry reactions Flashcards
What is it called to add hydrogen atoms across a carbon-carbon double bond?
Hydrogenation
What catalyst is need to turn an alkene into an alkane in an addition reaction adding two hydrogens?
Nickel
How do alkenes combust?
Incompletely
What is the word equation for the combustion of alkenes? Use ethene as the alkene.
ethene + oxygen → carbon monoxide + water
How can you tell visually when an alkene is combusting?
It burns with a smoky flame.
What catalyst is needed for alkenes to react with steam?
Phosphoric acid.
What is the word equation for ethene reacting with steam?
ethene + steam → ethanol
How can you cause an alkene to react with bromine?
Shaking them
What is the colour change of reacting an alkene with water?
Orange-brown to colourless
What is the word equation for ethene reacting with bromine?
ethene + bromine → dibromoethene
Is the reaction between an alkene and bromine exothermic or endothermic?
exothermic
What is the functional group of alcohols called?
The hydroxyl group -OH
What are the two methods of making ethanoic acid from ethanol?
Using the oxygen in the air, using an oxidising agent
What is the ideal temperature for fermentation?
37 degrees celsius
What is the ideal pH of fermentation?
Slightly acidic
What condition is need for bromine or chlorine to react with an alkane?
UV light
What conditions are need for the hydration of ethene to produce ethanol?
Phosphoric acid catalyst, 300 degrees C, 6-70 atm
What is the functional group of carboxylic acids?
-COOH
What’s the functional group of esters?
-COO
What’s the chemical formula for ethylethanoate?
CH3COOC2H5
