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Question: Answered & Verified by Expert
Which of the following is not correct ?
Chemistryp Block Elements (Group 15, 16, 17 & 18)JEE Main
Options:
  • A Ammonia is used as refrigerant
  • B A mixture of $\mathrm{Ca}(\mathrm{CN})_2$ and $\mathrm{C}$ is known as nitrolim
  • C A mixture of $\mathrm{Ca}\left(\mathrm{H}_2 \mathrm{PO}_4\right)_2$ and $\mathrm{CaSO}_4 \cdot 2 \mathrm{H}_2 \mathrm{O}$ is known as superphosphate of lime
  • D Hydrolysis of $\mathrm{NCl}_3$ gives $\mathrm{NH}_3$ and $\mathrm{HOCl}$
Solution:
1218 Upvotes Verified Answer
The correct answer is: A mixture of $\mathrm{Ca}(\mathrm{CN})_2$ and $\mathrm{C}$ is known as nitrolim
A mixture of calcium cyanamide $\mathrm{CaCN}_2$ and coke (C) is called nitrolim. It is used as it fertilizer and can be prepared by passing nitrogen on $\mathrm{CaC}_2$.

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