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Which of the following will give blood r...

Which of the following will give blood red colour with `FeCl_(3)` in sodium extract ?

A

B

`H_(2)N-overset(S)overset(||)C-NH_(2)`

C

`CH_(3)-overset(O)overset(||)C-NH_(2)`

D

`H_(2)N-overset(O)overset(||)C-NH_(2)`

Text Solution

Verified by Experts

The correct Answer is:
A, B
If Both nitrogen and sulpher are present in an organic compound, sodium fusion will convert into sodium thiocyanate which than react with `Fe^(+3)` to farm blood red colour complete `[Fe(SCN)]^(+2)`
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AAKASH SERIES-PRACTICAL CHEMISTRY-LEVEL -II (Lecture Sheet) (EXERCISE-I) (Single or more than one option correct)
  1. Lassaigne's test for the detection of nitrogen fails in

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  2. When excess of FeSO(4) is added to sodium extract the compound formed ...

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  3. Which of the following will give blood red colour with FeCl(3) in sodi...

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  4. Which of the following organic compounds will give white precipitate w...

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  5. Which of the following give positive test with bromine water and Baeye...

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  6. Which of the following compound(s) decolourises Bromine water and also...

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  7. Which of the following respond to litmus test?

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  8. Which of the following will not give positive Libermann's test?

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  9. Which of the following will evolve CO(2) on reaction with NaHCO(3) ?

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  10. Aldehydes and ketones canbe distinguished by using.

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  11. Which of the following will show positive azodye test ?

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  12. Which of these can be distinguished by adding HCl or Na(2)CO(3) ?

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  13. Which of the following reagents can be used to separate a mixture of a...

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  14. Ethanol and ethanal are distinguished by

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  15. Formic acid and acetic acid can be distinguished by

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  16. Methanoic acid and inethanal can be distinguished by

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  17. Which of the following will give brick red ppt. with Fehling's solutio...

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  18. Compound 'A' (C(10)H(12)O) evolves H(2) gas with Na metal. It reacts w...

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  19. The gas(es) which turn lime water milky is (are)

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  20. Which of the following sulphide(s) is (are) not decomposed with dil. H...

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