Question

Urine react with ammonia in the presence of alumina at 40 degree Celsius to give

Answer 1

Answer:

pyridine..

Explanation:

cycloalkenes generally give addition reactions, aromatic compounds tend to react by substitution.

Answer 2

Pyridine

Pyridine is a principal heterocyclic normal compound with the engineered condition C5H5N. It is fundamentally associated with benzene, with one methine pack (=CH−) superseded by a nitrogen molecule. It is an extraordinarily flammable, desolately acid neutralizer, water-miscible liquid with an unquestionable, unfortunate fish-like smell. Pyridine is dreary, but more prepared or soiled tests can appear to be yellow. The pyridine ring occurs in various huge combinations, including agrochemicals, medications, and supplements.