Some Basic Concepts Of Chemistry Question 289

Question: The percentage of nitrogen in urea is about [KCET 2001]

Options:

A) 46

B) 85

C) 18

D) 28

Show Answer

Answer:

Correct Answer: A

Solution:

Urea- $ NH _2-CO-NH _2 $

$ \because $ 60gm of urea contains 28gm of nitrogen

$ \therefore $ 100gm of urea contains $ \frac{28}{60}\times 100=46.66 $ .



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