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28 mg of an organic compound containing ...

28 mg of an organic compound containing nitrogen was digested according to Kjeldahl's method and the evolved ammonia was absored in 20 mL of 0.1 M HCl solution. The excess of the acid required 15 mL of 0.1 M NaOH solution for complete neutralization. Then the percentage of 'N' is the compound is

A

50

B

30

C

25

D

40

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The correct Answer is:
C
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AAKASH SERIES-PURIFICATION OF ORGANIC COMPOUNDS AND IUPAC NOMENCLATURE-LECTURE SHEET (EXERCISE - I (STRAIGHT OBJECTIVE TYPE QUESTIONS))
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  2. Copper wire test for halogens is known as

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  3. In which of the following compounds, nitrogen cannot be tested by Lass...

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  4. A compound which does not give a positive test in Lassaigne.s test for...

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  5. In the Duma's method for the estimation of nitrogen in an organic comp...

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  6. In the estimation of sulphur in an organic compound, fuming nitric aci...

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  7. In the estimation of nitrogen by Duma's method 1.18g of an organic com...

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  8. In organic compounds, phosphorus is estimated as:

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  9. Kjeldahl's method cannot be used for the estimation of nitrogen in

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  10. An organic compound contains C = 40%, H = 13.33% and N = 46.67%. Its e...

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  11. The blood red colour in the combination test of nitrogen and sulphur i...

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  12. The violet colour obtained during the test of sulphur Lassaigne's test...

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  13. Which of the following compounds gives blood red colouration when its ...

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  14. An organic compound which produces a bluish green coloured flame on he...

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  15. Fractional crystallization is carried out to separate

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  16. Mixture of nitrobenzene and aniline can be separated by

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  17. Two substances when separated on the basis of partition coefficient be...

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  18. Absolute alcohol can be prepared from rectified spirit by

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  19. The ammonia evolved by the treatment of 0.30 g of an organic compound ...

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  20. 28 mg of an organic compound containing nitrogen was digested accordin...

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