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In Kjeldahl's method, nitrogen present i...

In Kjeldahl's method, nitrogen present is estimated as

A

`N_(2)`

B

`NH_(3)`

C

`NO_(2)`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
B
In this method the nitrogen present is qunatitively converted into `(NH_(4))_(2)SO_(4)` on heating with conc. `H_(2)SO_(4)`. The `(NH_(4))_(2)SO_(4)` is then treated with standard solution to liberate `NH_(3)` , which is absorbed in `H_(2)SO_(4)` to obtain precentage of nitrogen
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Knowledge Check

  • In Kjeldahl's method, nitrogen presen is estimated as:

    A
    `N_(2)`
    B
    `NH_(3)`
    C
    `NO_(2)`
    D
    None of these

  • In Kjeldahl's method of estimation of nitrogen, nitrogen is quantitatively converted to ammonium sulphate. It is then treated with standard solution of alkli. The nitrogen which is present is estimated as

    A
    `N_(2)` gas
    B
    `NO_(2)` gas
    C
    `NH_(3)` gas
    D
    `(NH_(4))_(2)SO_(4)` ppt

  • Which of the following compounds will be suitable for Kjeldahl's method for nitrogen estimation? (a) (b) (c) (d)

    A
    B
    C
    D

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