Give reason for the following:
Straight chain alkanes possess higher boiling points than the corresponding branched chain isomers.
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Explain the following observations: (i) The boiling point of ethanol is higher than that of methoxymethane.
(i) Ethanol undergoes intermolecular hydrogen bonding due to the presence of a hydrogen attached to oxygen atom. As a result, ethanol exist as associated molecules and hence it has higher...
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Although the H-bonding in hydrogen fluoride is much stronger than that in water, yet water has a much higher boiling point than hydrogen fluoride.
This is because hydrogen bonding is multidimensional in water whereas in HF it is linear.
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Name two isomers of butanol? Which has higher boiling point?
n-butanol and 2-methyl propan-2-ol.Butanol has the higher boiling point as the branching increases the surface area of the molecule decreases so the boiling point decreases.
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Arrange the three isomers of pentane in increasing order of their boiling points?
2, 2-Dimethylpropane<2- methyl butane<n-pentane
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Give reason for the following: The boiling points of alkanes decreases with branching.
With branching the shape of the molecule tends to approach that of a sphere . As a result, the surface area of the branched isomers decreases, so the vander waals...
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Assertion: Among the isomeric alkanes, the branched chain isomers have lower boiling point than the straight chain isomers.
(a) A is correct, R is correct and R is a correct explanation of A.
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Assertion (A).H2O2 has higher boiling point than water Reason (R). The dipole moment of H2O2 is little more than that of H2O.
(B) If both assertion and reason are true, but reason is not the true explanation of the assertion.
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Assertion (A). Alkanes containing more than three carbon atoms exhibit chain isomerism. Reason (R). All carbon atoms in alkanes are sp hybridize.
(c) If assertion is true, but reason is false.
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Assertion (A).Metamers can also be chain or position isomers. Reason (R). The term tautomerism was introduced to explain
(b) If both assertion and reason are true, but reason is not the true explanation of the assertion.
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Assertion (A).Pent-1-ene and pent-2-ene are position isomers Reason (R). Position isomers differ in the position
(a) If both assertion and reason are true, and reason is the true explanation of the assertion.
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