MCQ
Lassaigne's test is used for detection of :
- ANitrogen and Sulphur only
- BNitrogen, Sulphur and Phosphorous Only
- CPhosphorous and halogens only
- ✓Nitrogen, Sulphur, phosphorous and halogens
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$(I)\,\,q + \mathrm{w}$ $(II)\,\, q$
$(III)\,\, \mathrm{w}$ $(IV)\,\, H - TS$
(Use molar mass of aluminium as $27.0 g mol ^{-1}, R =0.082 atm L mol { }^{-1} K ^{-1}$ )