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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: - An atom has electronic configuration 1s²2s²2p⁶3s²3p⁶3d³4s², you will place it in
- Amongest the following,the compound that can most readily get sulphonated is
- AgNO₃ does not give precipitate with CHCl₃ because
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- In an alkaline medium, glycine predominantly exists in a
Topics: Basic Principles of Organic Chemistry
(124)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- An atom has electronic configuration 1s²2s²2p⁶3s²3p⁶3d³4s², you will place it in
- Amongest the following,the compound that can most readily get sulphonated is
- AgNO₃ does not give precipitate with CHCl₃ because
- An isomer of ethanol is
- In an alkaline medium, glycine predominantly exists in a
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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