U6th Chemistry

How many chiral centres?

• 13

• 14

• 15

• 16

Which of these has the lowest pKa?

• Phenol

• 4-Nitrophenol

• 3,5-dibromo-4-nitrophenol

Which molecule is chiral?

• A

• B

• C

• D

What is the name of the polymer formed from this monomer?

• poly(diaminophenol)

• poly(3,5-diaminocyclohex-2-enol)

• poly(3,5-diaminophenol)

• poly(1,4-diaminocyclohex-3-enol)

Which are the most acidic?

• Alkynes

• Alkenes

• Alkanes

Which of these is the intermediate of a 3-step hydrolysis of a nitrile to a carboxylic acid?

• Amide

• Ketone

• N-substituted amine

• Acyl chloride

In a molecule of ethene, how many sigma bonds are there?

Which is the correct name for this molecule?

• cis-1-Bromo-2-chloroethene

• trans-1-chloro-2-bromoethene

• (Z)-1-bromo-2-chloroethene

• cis-1-Bromo-2-chloroethene

Which of these products would you get when reacting 2-chlorobutane with hot ethanolic KOH?

• Butan-2-one

• Butan-2-ol

• But-1-ene

• But-2-ene

Which of these are produced when concentrated sulphuric acid is added to KI?

• hydrogen sulphide gas

• solid sulphur

• iodine

• potassium sulphate