Practice R3.4 Electron-pair sharing reactions with authentic IB Chemistry exam questions for both SL and HL students. This question bank mirrors Paper 1A, 1B, 2 structure, covering key topics like atomic structure, chemical reactions, and organic chemistry. Get instant solutions, detailed explanations, and build exam confidence with questions in the style of IB examiners.
Paper
Level
Question 1
HLPaper 2
The identity of the leaving group affects substitution reaction rates.
1.[1]
Define what is meant by a leaving group.
2.[1]
Compare the rate of substitution for and with the same nucleophile.
3.[2]
Explain your answer to part 2 with reference to bond strength.
Question 2
SLPaper 1A
What is the major product of the reaction between HCl and but-2-ene?
Question 3
HLPaper 1A
What must be present on a nucleophile?
Question 4
SLPaper 1A
Which type of reaction occurs when ethanol and butanoic acid react together in the presence of a catalyst?
Question 5
HLPaper 1A
Which is a major product of the electrophilic addition of hydrogen chloride to propene?
Question 6
SLPaper 1A
Which type of reaction occurs between an alcohol and a carboxylic acid?
Question 7
HLPaper 1A
Which is the electrophile in the nitration of benzene?
Question 8
SLPaper 1A
Which of the following can be both formed from bromoethane and converted directly into ethanal?
Question 9
HLPaper 1A
Which would be the most effective method to distinguish between liquid propan-1-ol and propan-2-ol?
Question 10
SLPaper 1A
What is the IUPAC name of this molecule?