MCQ
In Kjeldahl's method for estimation of nitrogen, CuSO4 acts as:
- AOxidising agent.
- BReducing agent.
- CCatalytic agent.
- DHydrolysis agent.
Explanation:
In Kjeldahl's method (used for the estimation of nitrogen) the organic compound is heated with conc. H2SO4 in the presence of K2SO4 (used to elevate boiling point of H2SO4) and CusO4 (used as catalyst) to convert all the nitrogen into (NH4)2SO4
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