Question

Arrange the following nitrogenous fertilizers in increasing N content :
A. Urea
B. Ammonium Nitrate
C. Ammonium Chloride
D. Calcium Ammonium Nitrate (CAN)
E. Diammonium Phosphate (DAP)
Choose the correct answer from the options given below :

• A. A $<$ B $<$ C $<$ D $<$ E
• B. E $<$ D $<$ C $<$ B $<$ A
• C. E $<$ D $<$ C $<$ A $<$ B
• D. A $<$ C $<$ B $<$ D $<$ E

Hint:

Nitrogen content of major fertilizers: - Anhydrous Ammonia: $82\%$ - Urea: $46\%$ - Ammonium Nitrate: $33.5\%$ - Ammonium Chloride: $26\%$ - CAN: $25\%$ - DAP: $18\%$

Answer 1

The Correct Option is B

Step 1: Understanding the Question:
The question asks to arrange the given fertilizers in increasing order of their Nitrogen (N) percentage content.

Step 2: Nitrogen Content of Listed Fertilizers:

• E. Diammonium Phosphate (DAP): Contains $18\%\text{ N}$ (and $46\%\text{ P}_2\text{O}_5$).
• D. Calcium Ammonium Nitrate (CAN): Contains $25\%\text{ N}$ (also marketed as $26\%\text{ N}$).
• C. Ammonium Chloride ($NH_4Cl$): Contains $25--26\%\text{ N}$.
• B. Ammonium Nitrate ($NH_4NO_3$): Contains $33--34\%\text{ N}$.
• A. Urea [$CO(NH_2)_2$]: Contains $46\%\text{ N}$.

Step 3: Detailed Explation & Sequence Calculation:

• Comparing nitrogen percentages: DAP (18%) $<$ CAN (25%) \le Ammonium Chloride (25--26%) $<$ Ammonium Nitrate (33--34%) $<$ Urea (46%)
• In terms of letters: \[ E \, (18\%) < D \, (25\%) < C \, (26\%) < B \, (33--34\%) < A \, (46\%) \]
• Hence, the correct increasing order is E $<$ D $<$ C $<$ B $<$ A.

Step 4: Fil Answer:
The correct order is E $<$ D $<$ C $<$ B $<$ A, which corresponds to option (B).