QBManager

Hydrocarbons

230478 The alkene that will give the same product with $H B r$ in the absence as well as in the presence of peroxide is

1 2-butene

2 1-butene

3 propene

4 1-hexene

5 2-methylpropene

Kerala-CEE-2010

Hydrocarbons

230483 An alkene having the molecular formula $C_{9} H_{18}$ on ozonolysis gives 2, 2-dimethyl propanal and 2-butanone. The alkene is :

1 2, 2, 2-trimethyl-3-hexene

2 2, 2, 6-trimethyl-3-hexene

3 2, 3,4-trimethyl-2-hexene

4 2, 2, 4-trimethyl-3-hexene

5 2, 2-dimethyl-1-3 heptene

Kerala-CEE-2005 VITEEE-2019

Hydrocarbons

230485 Identify the correct statement from below, concerning the structure of ${CH}_{2} = C = {C H}_{2}$ :

1 The molecule is planer

2 One of the three carbon atoms is in an-sp

^{3}

hybridized state

3 The molecule is non-planar with the two

{CH}_{2}

groups being in planes perpendicular to each other

4 All the carbon atoms are sp-hybridized

5 The molecule is bent with the

- C - C - C

- angle being 120 degrees.

Explanation:

: The structure is given as -
original image
The molecule is a non-planar with the two $- {CH}_{2}$ groups being in planes perpendicular to each other

Kerala-CEE-2004

Hydrocarbons

230486 When 3-phenylpropene reacts with $HBr$ in the presence of peroxide, the major product formed is

1 2-bromo 1-phenylpropane

2 1,2-dibromo 3-phenylpropane

3 3-(o-bromophenyl) propene

4 1-bromo 3-phenylpropane

5 3 (p-bromophenyl) propene

Explanation:

:
original image
When 3-phenypropene reacts with $HBr$ in the presence of peroxide then reaction is known as Antimarkonikoff or peroxide effect.

Kerala-CEE-2011

Hydrocarbons

230491 The neopentyl halide in ethanol yields alkenes by $E 1$ mechanism due to

1 low concentration of solvent

2 absence of base

3 it is a primary halide

4 steric factor which prevents E2 mechanism

5 salvation effect

Explanation:

:
original image
The neopentyl halide in ethanol yields alkenes by $E_{1}$ mechanism due to steric factor which prevent $E_{2}$ Mechanism.

Kerala-CEE-2019

Hydrocarbons

230478 The alkene that will give the same product with $H B r$ in the absence as well as in the presence of peroxide is

1 2-butene

2 1-butene

3 propene

4 1-hexene

5 2-methylpropene

Kerala-CEE-2010

Hydrocarbons

230483 An alkene having the molecular formula $C_{9} H_{18}$ on ozonolysis gives 2, 2-dimethyl propanal and 2-butanone. The alkene is :

1 2, 2, 2-trimethyl-3-hexene

2 2, 2, 6-trimethyl-3-hexene

3 2, 3,4-trimethyl-2-hexene

4 2, 2, 4-trimethyl-3-hexene

5 2, 2-dimethyl-1-3 heptene

Kerala-CEE-2005 VITEEE-2019

Hydrocarbons

230485 Identify the correct statement from below, concerning the structure of ${CH}_{2} = C = {C H}_{2}$ :

1 The molecule is planer

2 One of the three carbon atoms is in an-sp

^{3}

hybridized state

3 The molecule is non-planar with the two

{CH}_{2}

groups being in planes perpendicular to each other

4 All the carbon atoms are sp-hybridized

5 The molecule is bent with the

- C - C - C

- angle being 120 degrees.

Explanation:

: The structure is given as -
original image
The molecule is a non-planar with the two $- {CH}_{2}$ groups being in planes perpendicular to each other

Kerala-CEE-2004

Hydrocarbons

230486 When 3-phenylpropene reacts with $HBr$ in the presence of peroxide, the major product formed is

1 2-bromo 1-phenylpropane

2 1,2-dibromo 3-phenylpropane

3 3-(o-bromophenyl) propene

4 1-bromo 3-phenylpropane

5 3 (p-bromophenyl) propene

Explanation:

:
original image
When 3-phenypropene reacts with $HBr$ in the presence of peroxide then reaction is known as Antimarkonikoff or peroxide effect.

Kerala-CEE-2011

Hydrocarbons

230491 The neopentyl halide in ethanol yields alkenes by $E 1$ mechanism due to

1 low concentration of solvent

2 absence of base

3 it is a primary halide

4 steric factor which prevents E2 mechanism

5 salvation effect

Explanation:

:
original image
The neopentyl halide in ethanol yields alkenes by $E_{1}$ mechanism due to steric factor which prevent $E_{2}$ Mechanism.

Kerala-CEE-2019

Hydrocarbons

230478 The alkene that will give the same product with $H B r$ in the absence as well as in the presence of peroxide is

1 2-butene

2 1-butene

3 propene

4 1-hexene

5 2-methylpropene

Kerala-CEE-2010

Hydrocarbons

230483 An alkene having the molecular formula $C_{9} H_{18}$ on ozonolysis gives 2, 2-dimethyl propanal and 2-butanone. The alkene is :

1 2, 2, 2-trimethyl-3-hexene

2 2, 2, 6-trimethyl-3-hexene

3 2, 3,4-trimethyl-2-hexene

4 2, 2, 4-trimethyl-3-hexene

5 2, 2-dimethyl-1-3 heptene

Kerala-CEE-2005 VITEEE-2019

Hydrocarbons

230485 Identify the correct statement from below, concerning the structure of ${CH}_{2} = C = {C H}_{2}$ :

1 The molecule is planer

2 One of the three carbon atoms is in an-sp

^{3}

hybridized state

3 The molecule is non-planar with the two

{CH}_{2}

groups being in planes perpendicular to each other

4 All the carbon atoms are sp-hybridized

5 The molecule is bent with the

- C - C - C

- angle being 120 degrees.

Explanation:

: The structure is given as -
original image
The molecule is a non-planar with the two $- {CH}_{2}$ groups being in planes perpendicular to each other

Kerala-CEE-2004

Hydrocarbons

230486 When 3-phenylpropene reacts with $HBr$ in the presence of peroxide, the major product formed is

1 2-bromo 1-phenylpropane

2 1,2-dibromo 3-phenylpropane

3 3-(o-bromophenyl) propene

4 1-bromo 3-phenylpropane

5 3 (p-bromophenyl) propene

Explanation:

:
original image
When 3-phenypropene reacts with $HBr$ in the presence of peroxide then reaction is known as Antimarkonikoff or peroxide effect.

Kerala-CEE-2011

Hydrocarbons

230491 The neopentyl halide in ethanol yields alkenes by $E 1$ mechanism due to

1 low concentration of solvent

2 absence of base

3 it is a primary halide

4 steric factor which prevents E2 mechanism

5 salvation effect

Explanation:

:
original image
The neopentyl halide in ethanol yields alkenes by $E_{1}$ mechanism due to steric factor which prevent $E_{2}$ Mechanism.

Kerala-CEE-2019

Hydrocarbons

230478 The alkene that will give the same product with $H B r$ in the absence as well as in the presence of peroxide is

1 2-butene

2 1-butene

3 propene

4 1-hexene

5 2-methylpropene

Kerala-CEE-2010

Hydrocarbons

230483 An alkene having the molecular formula $C_{9} H_{18}$ on ozonolysis gives 2, 2-dimethyl propanal and 2-butanone. The alkene is :

1 2, 2, 2-trimethyl-3-hexene

2 2, 2, 6-trimethyl-3-hexene

3 2, 3,4-trimethyl-2-hexene

4 2, 2, 4-trimethyl-3-hexene

5 2, 2-dimethyl-1-3 heptene

Kerala-CEE-2005 VITEEE-2019

Hydrocarbons

230485 Identify the correct statement from below, concerning the structure of ${CH}_{2} = C = {C H}_{2}$ :

1 The molecule is planer

2 One of the three carbon atoms is in an-sp

^{3}

hybridized state

3 The molecule is non-planar with the two

{CH}_{2}

groups being in planes perpendicular to each other

4 All the carbon atoms are sp-hybridized

5 The molecule is bent with the

- C - C - C

- angle being 120 degrees.

Explanation:

: The structure is given as -
original image
The molecule is a non-planar with the two $- {CH}_{2}$ groups being in planes perpendicular to each other

Kerala-CEE-2004

Hydrocarbons

230486 When 3-phenylpropene reacts with $HBr$ in the presence of peroxide, the major product formed is

1 2-bromo 1-phenylpropane

2 1,2-dibromo 3-phenylpropane

3 3-(o-bromophenyl) propene

4 1-bromo 3-phenylpropane

5 3 (p-bromophenyl) propene

Explanation:

:
original image
When 3-phenypropene reacts with $HBr$ in the presence of peroxide then reaction is known as Antimarkonikoff or peroxide effect.

Kerala-CEE-2011

Hydrocarbons

230491 The neopentyl halide in ethanol yields alkenes by $E 1$ mechanism due to

1 low concentration of solvent

2 absence of base

3 it is a primary halide

4 steric factor which prevents E2 mechanism

5 salvation effect

Explanation:

:
original image
The neopentyl halide in ethanol yields alkenes by $E_{1}$ mechanism due to steric factor which prevent $E_{2}$ Mechanism.

Kerala-CEE-2019

Hydrocarbons

230478 The alkene that will give the same product with $H B r$ in the absence as well as in the presence of peroxide is

1 2-butene

2 1-butene

3 propene

4 1-hexene

5 2-methylpropene

Kerala-CEE-2010

Hydrocarbons

230483 An alkene having the molecular formula $C_{9} H_{18}$ on ozonolysis gives 2, 2-dimethyl propanal and 2-butanone. The alkene is :

1 2, 2, 2-trimethyl-3-hexene

2 2, 2, 6-trimethyl-3-hexene

3 2, 3,4-trimethyl-2-hexene

4 2, 2, 4-trimethyl-3-hexene

5 2, 2-dimethyl-1-3 heptene

Kerala-CEE-2005 VITEEE-2019

Hydrocarbons

230485 Identify the correct statement from below, concerning the structure of ${CH}_{2} = C = {C H}_{2}$ :

1 The molecule is planer

2 One of the three carbon atoms is in an-sp

^{3}

hybridized state

3 The molecule is non-planar with the two

{CH}_{2}

groups being in planes perpendicular to each other

4 All the carbon atoms are sp-hybridized

5 The molecule is bent with the

- C - C - C

- angle being 120 degrees.

Explanation:

: The structure is given as -
original image
The molecule is a non-planar with the two $- {CH}_{2}$ groups being in planes perpendicular to each other

Kerala-CEE-2004

Hydrocarbons

230486 When 3-phenylpropene reacts with $HBr$ in the presence of peroxide, the major product formed is

1 2-bromo 1-phenylpropane

2 1,2-dibromo 3-phenylpropane

3 3-(o-bromophenyl) propene

4 1-bromo 3-phenylpropane

5 3 (p-bromophenyl) propene

Explanation:

:
original image
When 3-phenypropene reacts with $HBr$ in the presence of peroxide then reaction is known as Antimarkonikoff or peroxide effect.

Kerala-CEE-2011

Hydrocarbons

230491 The neopentyl halide in ethanol yields alkenes by $E 1$ mechanism due to

1 low concentration of solvent

2 absence of base

3 it is a primary halide

4 steric factor which prevents E2 mechanism

5 salvation effect

Explanation:

:
original image
The neopentyl halide in ethanol yields alkenes by $E_{1}$ mechanism due to steric factor which prevent $E_{2}$ Mechanism.

Kerala-CEE-2019