Statement (I): Kjeldahl method is applicable to estimate nitrogen in pyridine.

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Q.
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: [2024]

1 Statement I is true but Statement II is false

2 Statement I is false but Statement II is true

3 Both Statement I and Statement II are true

4 Both Statement I and Statement II are false

Ans.
(4)

Kjeldahl method is not applicable to compounds containing nitrogen in nitro and azo groups and nitrogen present in the ring (e.g. pyridine) as nitrogen of these compounds does not change to ammonium sulphate under these conditions.

Solution

1 Statement I is true but Statement II is false

2 Statement I is false but Statement II is true

3 Both Statement I and Statement II are true

4 Both Statement I and Statement II are false

Ans.
(4)

Kjeldahl method is not applicable to compounds containing nitrogen in nitro and azo groups and nitrogen present in the ring (e.g. pyridine) as nitrogen of these compounds does not change to ammonium sulphate under these conditions.

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Solution

1 Statement I is true but Statement II is false

2 Statement I is false but Statement II is true

3 Both Statement I and Statement II are true

4 Both Statement I and Statement II are false

Ans. (4) Kjeldahl method is not applicable to compounds containing nitrogen in nitro and azo groups and nitrogen present in the ring (e.g. pyridine) as nitrogen of these compounds does not change to ammonium sulphate under these conditions.

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Ans.
(4)

Kjeldahl method is not applicable to compounds containing nitrogen in nitro and azo groups and nitrogen present in the ring (e.g. pyridine) as nitrogen of these compounds does not change to ammonium sulphate under these conditions.