Disubstitution and Directing Groups (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 effect does an activating group have on benzene's reactivity toward electrophiles?
What effect does an activating group have on benzene's reactivity toward electrophiles?
Increases reactivity
How many bromine atoms substitute when phenylamine reacts with bromine?
How many bromine atoms substitute when phenylamine reacts with bromine?
Three bromine atoms
What conditions are needed for bromination of nitrobenzene?
What conditions are needed for bromination of nitrobenzene?
Catalyst and heating required
Which positions on benzene are defined as ortho relative to a substituent at position 1?
Which positions on benzene are defined as ortho relative to a substituent at position 1?
Positions 2 and 6
Which group is a 2- and 4-directing (ortho-para directing) group?
Which group is a 2- and 4-directing (ortho-para directing) group?
hydroxyl group
Which group is a 3-directing (meta-directing) group?
Which group is a 3-directing (meta-directing) group?
cyano group
What is unique about halogens as substituent groups on benzene?
What is unique about halogens as substituent groups on benzene?
Deactivating but ortho-para directing
Where does the group substitute when benzoic acid undergoes nitration?
Where does the group substitute when benzoic acid undergoes nitration?
Position 3 (meta position)
To make 1,4-dichloronitrobenzene from benzene, which substituent should be added first?
To make 1,4-dichloronitrobenzene from benzene, which substituent should be added first?
Chlorine
What temperature is used for the first nitration of toluene to form 2-nitrotoluene in TNT synthesis?
What temperature is used for the first nitration of toluene to form 2-nitrotoluene in TNT synthesis?
50°C