Chemistry · Practical Inorganic chemistry (Qualitative Analysis)
JEE Main 2025 — 22 January, Evening Shift — Question 39
Given below are two statements : one is labelled as Statement I and the other is labelled as Statement II :
Statement (I) : Nitrogen, sulphur, halogen and phosphorus present in an organic compound are detected by Lassaigne's Test.
Statement (II) : The elements present in the compound are converted from covalent form into ionic form by fusing the compound with Magnesium in Lassaigne's test.
In the light of the above statements, choose the correct answer from the options given below :
- Option A:
Both Statement I and Statement II are true
- Option B:
Both Statement I and Statement II are false
- Option C:Correct
Statement I is true but Statement II is false
- Option D:
Statement I is false but Statement II is true
Answer: C
Step-by-step solution
The elements present in the compound are converted from covalent form into ionic form by fusing
the compound with sodium in Lassigne's test
Answer key and solution verified before publishing.
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- Exam
- JEE Main 2025
- Subject
- Chemistry
- Chapter
- Practical Inorganic chemistry (Qualitative Analysis)
- Topic
- Introduction to Qualitative Analysis + Preliminary Tests - Dry Tests