Isomerism part -1 Quiz

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Isomerism part -1 Quiz - Chem Crack

General Organic chemistry Quiz - 1

Least energetic conformation of cyclohexane is
*

10 points

chair conformation

boat conformation

cis conformation

E-Z form.

Which of the following is a chiral molecule?
*

10 points

The angle strain in cyclobutane is
*

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9°44

29°16'

19°22'

24º44'

The general formula of a cycloalkane is

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C2Hn

CnH2n

CnH2n-2

CnH2n+2

According to Bayer's strain theory which is highly
stable?
*

10 points

Cyclobutane

Cyclopentane

Cycloheptane

Cyclohexane

geometrical isomerism is shown by *

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None of these

Number of possible alkynes with formula C5H8 is
*

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Replacement of Cl of chlorobenzene to give
phenol requires drastic conditions, but Cl of
2,4-dinitrochlorobenzene is readily replaced. This is
because
*

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-NO2 group makes the ring electron rich at ortho and para positions

-NO2 group withdraws electrons from meta position

-NO2 donates electrons at meta position

-NO2 withdraws electrons from ortho and para position

According to Huckel's rule an aromatic compound
must possess
*

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(4n + 1)pi electrons

(4n+2)pi electrons

4n pi electrons

(4n+3)pi electrons

The overlapping of orbitals in benzene is of the type
*

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sp3 -sp3

p-p

sp - sp

sp2 – sp2

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