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Absolute alcohol can be obtained from re...

Absolute alcohol can be obtained from rectified spirit

A

By removing the water in it using concentrated sulphuric acid

B

By removing the water using phosphorus pentoxide

C

By distilling with the appropriate amount of benzene

D

By distilling over plenty of quick lime

Text Solution

Verified by Experts

The correct Answer is:
C
Absolute alcohol is 100% ethanol. Rectified spirit is a mixture with a composition of 95% ethanol and 5% water. Benzene acts as a material separation agent when it is added to ethanoVwater mixture, it changes the molecular interactions and eliminates the ethanoV water positive azeotrope.
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  3. Absolute alcohol can be prepared from rectified spirit by

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  5. When ethyl alcohol (C(2)H(5)OH) is mixed with ammonia and passed over ...

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  6. A reaction between excess of C2H5OH and H2SO4 at 140^(@)C, gives

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  7. The vapour pressure of aqueous solution of methanol is

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  8. The process of manufacture of absolute alcohol from rectified spirit ...

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  9. Methanol and ethanol are miscible in water due to

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  10. The boiling point of methanol is greater than that of Methyl thiol bec...

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  11. Ethyl alcohol cannot be used as solvent for methyl magnesium iodide be...

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  12. Absolute alcohol can be obtained from rectified spirit

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  13. Which of the following combination can be used to synthesise ethanol?

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  14. A reaction between excess of C2H5OH and H2SO4 at 140^(@)C, gives

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  15. Ethyl alcohol on oxidation with dil. acid and K2CrO7 gives

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  16. Which is the most suitable method for removing the traces of water fro...

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  17. The boiling point of ethanol should be less than that of

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  18. If ethanol dissolves in water, then which of the following would be do...

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