S Block Elements Question 194
Question: Slow acting nitrogenous fertilizer among the following is
[DCE 2003]
Options:
A) $ NH_2CONH_2 $
B) $ NH_4NO_3 $
C) $ CaNCN $
D) $ KNO_3 $
Show Answer
Answer:
Correct Answer: B
Solution:
Calcium cyanamide is the slow acting nitrogenous fertilizer as it decompose very slowly. $ CaNCN+2H_2O\to CaCO_3+\underset{Urea}{\mathop{NH_2CONH_2}} $
$ NH_2CONH_2+H_2O\to CO_2+2NH_3 $
$ NH_3\underset{bacteria}{\mathop{\xrightarrow{\text{Nitrifying }}}}Soluble\ nitrates\to Plants $
BETA
