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Given below are two statement : 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 Mg in Lassaigne's test. In the light of the above statements, choose the correct answer from the options given below : (1) Both Statement I and Statement II are true (2) Both Statement I and Statement II are false (3) Statement I is true but Statement II is false (4) Statement I is false but Statement II is true

1. Both Statement I and Statement II are true
2. Both Statement I and Statement II are false
3. Statement I is true but Statement II is false
4. Statement I is false but Statement II is true

Correct answer: Statement I is true but Statement II is false

Solution

Statement I is correct because Lassaigne's Test is indeed used to detect nitrogen, sulfur, halogens, and phosphorus in organic compounds. However, Statement II is incorrect as the test does not convert elements into ionic form by fusing with magnesium; instead, it involves the formation of sodium salts of the elements present.

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