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Explain why low molecular mass alcohols ...

Explain why low molecular mass alcohols are soluble in water ?

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Solubility of alcohols and phenols in water is due to their ability to form hydrogen bond with water molecule. The hydrocarbon part methoxy methane (i.e., R group) tends prevent the formation of hydrogen bonds.
Alcohols with lower molar mass will have smaller hydrocarbon part and therefore tendency to form hydrogen bonding is more and they are more soluble in water.
`underset("(Molar soluble)")(CH_(3)CH_(2)OH) gt underset("(Less soluble)")(CH_(3)CH_(2)CH_(2)OH)`
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NCERT EXEMPLAR-ALCOHOLS, PHENOLS AND ETHERS-Alcohols, Phenols And Ethers
  1. Ethers can be prepared by Williamson synthesis in which an alkyl halid...

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  2. Why is the C-O-H bond angle in alcohols slightly less than the tetrahe...

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  3. Explain why low molecular mass alcohols are soluble in water ?

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  4. Explain why p-nitrophenol is more acidic than phenol ?

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  5. Explain why alcohols and ethers of comparable molecular mass have diff...

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  6. The carbon-oxygen bond in phenol is slightly stronger than that in met...

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  7. Arrange water, ethanol and phenol in increasing order of acidity and g...

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  8. Match the structures of the compounds given in Column I with the name ...

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  9. Match the starting material given in Column I with the products formed...

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  10. Match the items of Column I with items of Column II.

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  11. Match the items of Column I with items of Column II.

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  12. Assertion (A) Addition reaction of water to but-1-ene in acidic medium...

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  13. Assertion (A) p-nitrophenol is more acidic than phenol. Reason (R) N...

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  14. Assertion (A) IUPAC name of the compound CH(3)-underset(CH(3))unders...

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  15. Assertion (A) Bond angle is ethers is slightly less than tetrahedral a...

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  16. Assertion (A) Boiling points of alcohols and ethers are high. Reason...

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  17. Assertion (A) Like bromination of benzene, bromination of phenol is al...

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  18. Assertion (A) o-nitrophenol is less soluble in water than the m and p-...

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  19. Assertion (A) Ethanol is a weaker acid than phenol. Reason (R) Sodiu...

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  20. Assertion (A) Phenol forms 2, 4, 6-tribromophenol o treatement with Br...

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