Urea MCQs : This section focuses on the "Urea" in Chemical Technology. These Multiple Choice Questions (MCQ) should be practiced to improve the Chemical Technology skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.
Urea, also known as?
A. Nitric Acid
Explanation: Urea, also known as carbamide, is an organic compound with chemical formula CO(NH2)2.
Urea is colorless?
C. Can be true or false
D. Can not say
Explanation: True, Urea is colorless.
What is the molecular weight of Urea?
Explanation: Molecular formula of Urea is NH2CONH2. Weight of nitrogen, oxygen, carbon and hydrogen is 14, 16, 12 and 1 respectively. Therefore, Weight of Urea = 14*2+4+12+16 = 60.
Urea-ammonium nitrate solution is regarded as which of the mentioned?
A. Phosphate fertilizer
B. Nitrogen fertilizer
C. Potassium fertilizer
D. Mixed fertilizer
Explanation: Urea-ammonium nitrate solution is most popular nitrogen fertilizer
For which of the mentioned does Urea serve the purpose?
B. Formaldehyde resins
D. All of the above
Explanation: Urea is used as solid fertilizer (53%), liquid fertilizer (31%) and other miscellaneous applications such as animal feed, formaldehyde resins, melamine and adhesives.
In Resins, Urea is a raw material for the manufacture of ________ main classes of materials.
Explanation: Urea is a raw material for the manufacture of two main classes of materials: urea-formaldehyde resins and urea-melamine-formaldehyde used in marine plywood.
What is the highest end use of urea?
A. solid fertilizer
B. liquid fertilizer
C. formaldehyde resin
Explanation: Basically, urea is used as solid fertilizer in the highest amount (53%), 31% is used as liquid fertilizer and rest are the miscellaneous application such as formaldehyde resins and melamine
What is the undesirable product in urea production?
A. Ammonium carbonate
B. Biuret formation
C. Liquid NH3
D. Flakes formation
Explanation: In urea production, ammonium carbonate get decomposes and formed biuret which is the undesirable product increases the separation cost, flakes formed in the ammonium nitrate production
Friedrich Wöhler discovered that urea can be produced from inorganic starting materials was an important conceptual milestone in chemistry in?
Explanation: Friedrich Wöhler discovered that urea can be produced from inorganic starting materials was an important conceptual milestone in chemistry in 1828.
Urea is highly soluble in water?
C. Can be Yes Or No
D. Can not say
Explanation: Urea, is a colorless, odorless solid, highly soluble in water, and practically non-toxic.