What is the formula of urea?

Related Mcqs:

1. The chemical formula of urea fertilizer is_______________________?

   A. NH₂CONH₂
   B. [CO(NH₂)]
   C. Both a & b
   D. None of the above

2. A compound toxic to crop formed by the thermal decomposition of urea is_________________?

   A. Uric acid
   B. Biurct (NH2CONH CONH2 H2O)
   C. Diuret
   D. Both b & c

3. Urea in manufactured form gases________________________?

   A. NH3
   B. NH48CO2
   C. NH3 & CH4
   D. All the above

4. According to FCO, the maximum permissible total N content in the form of urea in DAP should be:_________?

   A. 2.50 %
   B. 3.50 %
   C. 4,50 %
   D. 5.5 %

   Submitted by: Shafiq Rehman

5. Urea Toxicity is also called ______________________?

   A. NH3 Toxicity
   B. Urine Toxicity
   C. Blood Toxicity
   D. None of above

6. The chemical formula of Hematite is_____________________?

   A. AL (OH)2
   B. Fe2O3
   C. Fe OOH
   D. None of the above

7. The formula used for calculating RSC is _____________________?

   A. RSC=(CO32 + HCO2) (Na + K + Ca2 + Mg2)
   B. RSC=(CO32 + HCO2) ( Ca2 + Mg2)
   C. None of the above
   D. non of these

8. The exact chemical formula of DAP fertilizer is___________________?

   A. (NH2) HPO4
   B. NH4H2PO4
   C. NH4H2PO4
   D. Both a & c

9. The exact formula for sodium hexametaphosphate is___________________?

   A. [(NaPO6)13]
   B. [(NaPO3)13]
   C. [(NaPO2)6]
   D. None of the above

10. The chemical formula for Ammonium acctatc is_____________________?

    A. NH3OAC
    B. NH4OAC
    C. NH4AOC
    D. Both b & c