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There are several criteria of purity of ...

There are several criteria of purity of organic compounds. Which is considered to be the best:

A

Melting point

B

Mixed melting point

C

Colour

D

Microscopic examination

Text Solution

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The correct Answer is:
B
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MBD PUBLICATION-HYDROCARBONS-QUESTION BANK
  1. In Lessaigne's test for N,S and halogens, the organic compound is:

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  2. In Lssaingne's test for nitrogen, the blue colour is due to the format...

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  3. There are several criteria of purity of organic compounds. Which is co...

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  4. In Lassaigne's test when both N and S are present, blood red colour o...

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  5. A mixture of camphor and benzoic acid can be separated by:

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  6. In Kjeldahl's method of estimation of nitrogen,K2SO4 acts as:

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  7. When petroleum is heated gradually, first batch of vapours evolved wil...

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  8. For detection of sulphur in an arganic compound, sodium nitroprusside ...

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  9. The organic compound which does not give blue colour in Lassaigne's te...

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  10. Some organic compounds are purified by distillation at low pressure be...

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  11. Raw juice in sugar factories is generally concentrated by:

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  12. Which is useful for separating benzoic acid from methyl benzoate?

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  13. Which of the following reagents is useful for separating aniline from ...

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  14. Which of the following is purified by vacuum distillation?

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  15. Turpentine oil can be purified by:

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  16. To determine the weight of halogen in the organic compound, the compou...

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  17. Halogens can be estimated by:

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  18. The latest technique used for the purification of organic compounds co...

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  19. The substance used as an adsorbent in the column choromatography is:

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  20. Separation of organic compounds by column chromatography is due to:

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