The P Block Elements - Result Question 18

####18. Which of the following fertilizers has the highest nitrogen percentage ?

[1993]

(a) Ammonium sulphate

(b) Calcium cyanamide

(c) Urea

(d) Ammonium nitrate

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Solution:

  1. (c) Urea $(46.6 % N) . %$ of $N$ in other compound are: $(NH_4)_2 SO_4=21.2 %$;

$CaCN_2=35.0 %$ and $NH_4 NO_3=35.0 %$



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