Question

Given below are two statements :
Statement (I) : Kjeldahl method is applicable to estimate nitrogen in pyridine.
Statement (II) : The nitrogen present in pyridine can easily be converted into ammonium sulphate in Kjeldahl method.
In the light of the above statements, choose the correct answer from the options given below.

• A. Both Statement I and Statement II is false
• B. Statement I is false but Statement II is true
• C. Both Statement I and Statement II is true
• D. Statement I is true but Statement II is false

Answer 1

Answer: (A)

Both Statement I and Statement II is false

Answer 2

Explanation:
The Kjeldahl method is used for estimating nitrogen in organic compounds that can convert nitrogen into ammonium sulfate by reaction with sulfuric acid. However, the nitrogen in pyridine is part of an aromatic ring system and is not easily converted into ammonium sulfate. Therefore:
Statement I: False. The Kjeldahl method cannot estimate nitrogen in pyridine.
Statement II: False.The nitrogen in pyridine cannot be easily converted into ammonium sulfate.