Stereoisomerism (OCR A-Level Chemistry A): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What are stereoisomers?
What are stereoisomers?
Same formula, different 3D arrangement
Which TWO conditions are required for E/Z isomerism?
Which TWO conditions are required for E/Z isomerism?
C=C bond and two different groups on each C
Why does E/Z isomerism occur?
Why does E/Z isomerism occur?
Restricted rotation around C=C bond
Can but-1-ene exhibit E/Z isomerism?
Can but-1-ene exhibit E/Z isomerism?
No, one C has two identical H atoms
What additional requirement applies to cis-trans naming?
What additional requirement applies to cis-trans naming?
One group on each carbon must be hydrogen
In the CIP system, which isomer has high-priority groups on the same side?
In the CIP system, which isomer has high-priority groups on the same side?
Z isomer
What is the priority order (lowest to highest) for these atoms?
What is the priority order (lowest to highest) for these atoms?
H < C < N < O < Cl < Br
What does the cis isomer correspond to in E/Z nomenclature?
What does the cis isomer correspond to in E/Z nomenclature?
The Z isomer
When should you use the point of difference method?
When should you use the point of difference method?
When directly attached atoms are identical
What common mistake do students make about E/Z isomerism conditions?
What common mistake do students make about E/Z isomerism conditions?
Forgetting each C needs two different groups