NEET2014Chemistry-Analytical Chemistry
NEET 2014 Chemistry Kjeldahl Method MCQ Question
Type: MCQ-numerical-Hard-Class 11
In the Kjeldahl’s method for estimation of nitrogen present in a soil sample, ammonia evolved from 0.75 g of sample neutralized 10mL of 1 M H₂SO₄. The percentage of nitrogen in the soil is
A
37.33
B
45.33
C
35.33
D
43.33
Correct Answer
Option B
Detailed Explanation
The amount of ammonia evolved is equivalent to the amount of H₂SO₄ neutralized. Using stoichiometry, the percentage of nitrogen can be calculated.
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