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CH(3)OCH(3) is a gas at room temperature...

`CH_(3)OCH_(3)` is a gas at room temperature while its isomer `CH_(3)CH_(2)OH` is a liquid of boiling point `78^(@)C` this is due to the fact that

A

the `CH_(3)-`group has weaker `+1`effect than the `CH_(3)CH_(2)^(-)` group.

B

lone pair of electrons of `CH_(3)OCH_(3)` participates in resonance but that in `CH_(3)CH_(2)OH` does not.

C

`CH_(3)OCH_(3)` cannot undergo molecular association as its hydrogens are all attached to carbon while `-OH` of `CH_(3)CH_(2)OH` permits association of a alcohol molecules.

D

`C_(2)H_(5)OH` forms intramolecular hydrogen bonds while `C_(2)H_(5)OH` forms intermolecular hydrogen bonds.

Text Solution

Verified by Experts

The correct Answer is:
C
`RHO` molecules have strong intermolecular attractive forces because of the `H-`bonding that is absent in ether molecules. Thus ethers have much lower boiling points. However, both from `H-`bonds with water and their solubility are comparable. In both cases as the `R` portion (the hydrophobic moiety) increases, the solubility in water decreases.
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