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In Lassaigne’s test a violet colour obtained indicates the presence of
Options
(a) nitrogen
(b) sulphur
(c) halogen
(d) none of the above
Correct Answer:
sulphur
Explanation:
S + 2Na → Na₂S. Na₂S + Na₂[Fe(NO)(CN)₅] (Sodium nitroprusside) → Na₄[Fe(CN)₅NOS] (violet or purple colour).
Related Questions: - Which of the following element,has the same oxidation state in all of its com.
- In N₂ + 3H₂ → 2NH₃ reversible reaction ,increases in pressure will favour
- Which of the following is the weakest bond
- Which of othe following is paramagnetic?
- 8.2 L of an ideal gas weight 9.0 gm at 300 K and 1 atm pressure
Topics: Basic Principles of Organic Chemistry
(124)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which of the following element,has the same oxidation state in all of its com.
- In N₂ + 3H₂ → 2NH₃ reversible reaction ,increases in pressure will favour
- Which of the following is the weakest bond
- Which of othe following is paramagnetic?
- 8.2 L of an ideal gas weight 9.0 gm at 300 K and 1 atm pressure
Topics: Basic Principles of Organic Chemistry (124)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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