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Question

In Kjeldahl method , nitrogen in the compound on heating with concentrated sulphuric acid and copper sulphate gets converted to ____

A
NO2
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B
NH3
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C
(NH4)2SO4
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D
None of the above
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Solution

The correct option is C (NH4)2SO4
Kjeldahl’s Method :

The compound containing nitrogen is heated with concentrated sulphuric acid and copper sulphate. Nitrogen in the compound gets converted into ammonium sulphate.
The reaction is :
Organic compound+H2SO4(NH4)2SO4

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