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Standard XII

Chemistry

Hyperconjugation

Correct order...

Question

Correct order of stability is :

1-butene > trans-2-butene > cis-2-butene

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trans-2-butene > 1-butene > cis-2-butene

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trans-2-butene > cis-2-butene > 1-butene

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cis-2-butene > trans-2-butene > 1-butene

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Solution

The correct option is C trans-2-butene > cis-2-butene > 1-butene

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Similar questions

Q. What is the order of stability for
I. 1-butene; II cis-2-butene; III. trans-2-butene?

Q. (i) Cis - 2 - butene

\to

trans-2-butene,

△ H_{1}

(ii) Cis - 2 - butene

\to

1 - butene,

△ 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

(v)

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 .

The value of

△ H_{1}

and

△ H_{2}

in kcal/mol are

There are some alkenes are given as follow:

2-methyl propene, cis-2-butene, trans-2-butene

Which of the following is the correct order for increasing order of reactivity for acid catalyzed hydration?

1) trans-2-butene< cis-2-butene < 2-methyl propene

2) cis-2-butene< trans-2-butene < 2-methyl propene

3) 2-methyl propene < trans-2-butene < cis-2-butene

Q. (i) Cis-2-butene

\to

trans-2-butene,

Δ H_{1}

(ii) Cis-2-butene

\to

1-butene,

Δ H_{2}

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

Δ H = - 647.0 k C a l / m o l .

The value of

Δ H_{1}

Δ H_{2}

respectively in K Cal/mole are

Q. (i) Cis - 2 - butene

\to

trans-2-butene,

△ H_{1}

(ii) Cis - 2 - butene

\to

1 - butene,

△ 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

(v)

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 .

The value of

△ H_{1}

and

△ H_{2}

in kcal/mol are

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