Q.

Number of compounds having molecular formula C5H12O giving blue coloured complex in Victor Meyer test will be.

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answer is 5.

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Detailed Solution

  • Victor Meyers Test is a test to detect the primary, secondary, and tertiary alcohols based on the colors obtained after the test.
  • With primary alcohols, red color is obtained, with secondary alcohols, the blue color is obtained, and the tertiary alcohols show no color.
  • Eight isomeric alcohols can be obtained from the molecular formula C5H12O
  • These are:
  1. Petan-1-ol
  2. Pentan-2-ol
  3. Pentan-3-ol
  4. 3-Methylbutan-1-ol
  5. 2-Methylbutan-2-ol
  6. 2,2 Dimethylpropan-1-ol
  7. 2-Methylbutan-1-ol
  8. 3-Methylbutan-2-ol
  9. Out of these 8, only Pentan-2-ol, Pentan-3-ol, and 3-Methylbutan-2-ol are secondary alcohols and thus will give blue color in the test.
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