In the estimation of carbon and hydrogen by combustion method, which of the following
is/are correct?
(i) A spiral of copper is introduced at the right extreme of combustion tube if the organic compound contains nitrogen.
(ii) A spiral of silver is introduced if the organic compound contains halogens.
(iii) The copper oxide in the combustion tube is replaced by lead chromate if the organic compound contains sulphur.
Text Solution
Verified by ExpertsD
Nitrogen oxides are removed using Cu -gauge heating.
Halogen is eliminated using silver gauge. Nonvolatile silver halide is formed.
Sulphur is removed from the molecule by generating lead sulphate fused with lead chromate.
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