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  • Arrange the following:(v) C_2H_5OH

13.4     Arrange the following:

                (v) In increasing order of boiling point:

                C_{2}H_{5}OH,    (CH_{3})_{2}NH,    C_{2}H_{5}NH_{2}

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The boiling point of the compounds depends on the extent of hydrogen bonding of the compound. More is the extent; higher is the boiling point. C_{2}H_{5}NH_{2} , it contains two H atoms, so it has a higher boiling point than (CH_{3})_{2}NH,. On the other hand, Oxygen atom is more electronegative than N atom, so the strength of hydrogen bonding is higher in C_{2}H_{5}OH, than C_{2}H_{5}OH,

THus the increasing order of boiling point is-

(C_{2}H_{5})_{2}NH<C_{2}H_{5}NH_{2}<C_{2}H_{5}OH

Posted by

manish

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