IUPAC and Isomers
Compounds with same molecular formula but different structural formula.
What is the definition of hydrocarbon?
Compound made up of C and H only
What is the catalyst required for esterification reaction?
conc sulfuric acid
Darker down the group.
What did ACG stand for before its meaning was removed?
Academic Colleges Group
How many different structural isomers with alkene group can form by C5H10?
5
Which fraction is used for airplane fuels?
Kerosene
What are the reagents and conditions required to turn Pent-1-ene to Pentane?
hydrogen gas, Ni and 150 degrees
What is the observation when sulfur reacts with oxygen?
Blue flame
Which type of pie is Mr Kim's favourite?
Steak and Cheese
What type of isomerism exists between butan-2-ol and 2-methylpropan-2-ol?
Functional group isomerism (alcohols with different carbon skeletons
Why is cracking process utilised in refinery industry?
To increase the proportion of smaller hydrocarbons which are more profitable.
What is the name of the reaction when 1-chloropropane turns to propan-1-ol?
Hydrolysis
What is the observation when Si reacts with Cl2 by heating?
Colourless liquid forms
Which country was Elon Musk born in?
South Africa
Explain why 2-chlorobutane can exist as a pair of optical isomers, but 1-chlorobutane cannot.
2-Chlorobutane has a chiral center (carbon bonded to four different groups), while 1-chlorobutane does not.
Describe the experiment to distinguish between alkanes and alkenes.
Bromine water test. Bromine water will decolourises quickly with alkenes.
Identify the mechanism for reactions of bromoethane with aqueous hydroxide ions. Explain why this mechanisms is used.
Sn2 - No steric hinderance
Write the formula of the product formed when aluminium oxide reacts with hot concentrated sodium hydroxide.
NaAl(OH)4
Which animal has the biggest eye to body ratio?
Vampire squid
A compound has the molecular formula C₆H₁₂O and contains a hydroxyl group and a double bond. It does not show geometric isomerism. Propose a possible IUPAC name.
Hex-3-en-1-ol
Write two propagation steps of a reaction between propane and chlorine gas with Uv light.
CH3CH3 + Cl* --> CH3CH2* + HCl
CH3CH2* + Cl2 --> CH3CH2Cl + Cl*
Describe the reagents and conditions required to turn ethene to propylammonium chloride
1. add HCl room temperature
2. add CN- (alc) heat
3. Add LiAlH4 (dry ether)
4. Add HCl
What is the greatest change in oxidation number for sulfur when sodium bromide reacts with sulfuric acid?
-2
Which is the iwi most strongly associated with the South Island of New Zealand?
Ngati Tahu (Kai Tahu)