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Structural and Physical Properties of Carbonyls

What is the c...

Question

What is the characteristic property common to both cis-2-butene , trans-2- butene?

a) boiling point. b) dipole moment
c)heat of hydrogenation. d) product of hydrogenation

What do options c and d mean?

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Solution

cis-2-butene and trans-2-butene have different heats of hydrogenation, M.P. ,B.P and solubilities but give the same product i.e n-butane on hydrogenation.

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Similar questions

Q. What characteristic is the best common to both

c i s - 2 - b u t e n e

t r a n s - 2 - b u t e n e

?

Q. The common characteristic of cis-2-butene and trans-2-butene is:

Q. What is dipole moment? Why do cis-trans isomers have different boiling point?

Q. What is the relationship between trans-2-butene and cis-2-butene?

Q. (i) Cis - 2 - butene

\to

trans-2-butene,

△ H_{1}

(ii) Cis - 2 - butene

\to

△ H_{2}

(iii) Trans-2-butene is more stable than cis - 2 - butene.
(iv) Enthalpy of combustion of 1 - butene,

△ H = - 649.8 k c a l / m o l

9 △ H_{1} + 5 △ H_{2} = 0

(vi) Enthalpy of combustion of trans 2 - butene,

△ H = - 647.0 k c a l / m o l .

△ H_{1}

△ H_{2}

in kcal/mol are

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