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Organic Chemistry – Some Basic Principles And Techniques

Question
CBSEENCH11007427
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In the Lassaigne’s test for nitrogen in an organic compound, the prussian blue colour is obtained due to the formation of:
  • Na2[Fe(CN)6]
  • Fe4[Fe(CN)6]3
  • Fe2[Fe(CN)6]

  • Fe3[Fe(CN)6]4

Solution

B.

Fe4[Fe(CN)6]3 The prussian blue colour is due to the formation of K4[Fe(CN)6]3.

Some More Questions From Organic Chemistry – Some Basic Principles and Techniques Chapter

What are isomers?

How many chain isomers are possible for pentane?

Which characteristic is common to different isomers of a compound?

 

Name three alkanes which do not show chain isomerism.

Name the types of structural isomerism shown by alkanes.

Name the four main types of structural isomerism. 

Write the three possible open chains of five carbon atoms

What types of structural isomerism is shown by the following pairs of organic compounds ?

Write the tautomer of acetaldehyde and write its IUPAC name.

Draw the structure of the tautomer of phenol and write its IUPAC name.

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