Question: The hormone used to ripen fruits is: ((MCAER 2014))
Options:
Fertilizer
Pesticide
Food additive
Pharmaceutical drug
🔑Key Points:
-Urea is now prepared commercially from liquid ammonia and liquid carbon dioxide.
-The chemical name of urea is carbamide, the diamide of carbonic acid.
-Its formula is NH2CONH2.
-Urea has important uses as a fertilizer and feeds supplement.
-It is a colourless substance existing in the crystalline form, which melts at 132.7°C (271° F).
-Urea is a waste product in the body with no physiological function.
-It dissolves in the kidney and blood before it is excreted as urine.
Important Points
-Uses of Urea
-It is mainly used as a nitrogen release fertilizer.
-Urea is used as a stabilizer in most nitrocellulose explosive products.
-It is used in manufacturing high explosive materials like urea nitrate (CH5N3O4).
-It is used as an important reagent in lanthanide chemistry.
-It is used in creams/ointments that are used for rehydration.
-It is used in hair removal creams and dish soaps.
-It is used as a browning agent for pretzels.
-It is used in manufacturing melamine.
-It is used to detect the bacteria in the stomach through the urea breath test.