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Which of the following reactions takes p...

Which of the following reactions takes place in Lassaigne's test for the detection of nitrogen present in an organic compound?

A

`Na + C + N rarr NaCN`

B

`FeSO_(4) + 6NaCN rarr Na_(4)[Fe(CN)_(6)] + Na_(2)SO_(4)`

C

`3Na_(4) [Fe(CN)_(6)] + 4FeCl_(3) rarr Fe_(4) [Fe(CN)_(6)]_(3) + 12NaCl`

D

All of these

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The correct Answer is:
D
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AAKASH SERIES-GENERAL ORGANIC CHEMISTRY-Objective Exercise -1
  1. ClCH(2)COOH is heated with fuming HNO(3) in the presence of AgNO(3) in...

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  2. In Lassaigne's test, thiourea is converted into

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  3. Which of the following reactions takes place in Lassaigne's test for t...

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  4. Which of the following compounds may give blood red colouration while ...

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  5. The correct match is

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  6. In Lassaigne's test, the organic compound is fused with sodium metal a...

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  7. In detection of CO(2), lime water turns milky due to formation of

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  8. In Lassaigne's test for nitrogen the blue colur is due to the formatio...

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  9. Lassaigne's test gives a violet colouration with sodium nitroprusside,...

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  10. Carbon and Hydrogen are estimated by

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  11. 0.4 g of an organic compound gave 0.188g of silver bromide by a haloge...

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  12. Match the reagents used for the detection of elements in organic compo...

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  13. In Kjeldahl's method, nitrogen present in the organic compond is first...

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  14. 0.302 g of organic compound gave 0.268g of silver bromide. The % of br...

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  15. The molecular formula of an organic compound is C(4)H(9)N. The volume ...

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  16. If 0.75 g of an organic compound in Kjeldahl's method neutralized 30 m...

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  17. 0.32g of an organic compound containing sulphur produces 0.233g of BaS...

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  18. In organic quantitative analysis, CuO acts as

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

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  20. In organic compounds, phosphorus is estimated as:

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