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10 questions · timed · auto-graded

Question 31 Mark
Sandmeyer reaction is used to prepare chlorobenzene, _____________  and ___________ .
Answer
Bromobenzene, cyanobenzene
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Question 41 Mark
Benzene diazonium chloride on reaction with phenol in a basic medium (NaOH) gives _________ .
Answer
orange dye (p-hydroxy azobenzene)
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Question 51 Mark
__________ is formed when benzene diazonium chloride is reacted and heated with hydrofluoroboric acid.
Answer
Fluorobenzene
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Question 81 Mark
When aniline is heated with conc. $H_2SO_4..........$ is formed.
Answer
sulphamilic acid $(p-$aminobenzene sulphonic acid$)$
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Question 91 Mark
Among the all three primary, secondary and tertiary the most basic amine is ____________ .
Answer
secondary
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