Why is copper sulfate (CuSO₄) sometimes added during digestion in the Kjeldahl method? - SOME BASIC PRINCIPLES OF ORGANIC CHEMISTRY Quiz | GKFix.in

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Question

Why is copper sulfate (CuSO₄) sometimes added during digestion in the Kjeldahl method?

A. As an indicator
B. As a neutralizing agent
C. As a preservative
D. As a catalyst