Q. Which of the following is not correct?
A) Ammonia is used as refrigerant
B) A mixture of Ca(CN)_{2} and C is known as nitrolim
C) A mixture of Ca(H_{2}PO_{4})_{2} and CaSO_{4} . 2H_{2}O is known as superphosphate of lime
D) Hydrolysis of NCl_{3}give NH_{3} and HOCl
Explanation
(b)
A mixture of calcium cyanmide CaCN_{2} and coke ( C) is called nitrolim. It is used as fertilizer and can be prepared by passing nitrogen on CaC_{2.}
CaC_{2}+N_{2}$\overset{1100℃}{\rightarrow}$CaCN_{2}+C
nitrolim
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.