Physical Properties of Alkenes

Q.

Which of the following is TRUE for alkenes?

1. Alkenes have pi bonds (not all bonds)
2. Alkenes are more reactive than alkanes
3. Alkenes, especially the higher ones with 3 or more carbons can possibly exhibit geometrical isomerism
4. Alkenes are soluble in organic solvents

Q.

For alkenes, generally boiling point of Cis form is higher than trans form - True or False?

1. True

2. False

Q. Arrange the following compounds in increasing order of their melting points.

1. Butane
2. Cis-2-butene
3. Trans-2-butene
4. Octane

Q. Arrange the following alkenes in increasing order of their boiling points.

1. trans-But-2-ene
2. cis-But-2-ene
3. trans-Hex-3-ene
4. cis-Hex-3-ene

Q.

Write the following properties of ethene :
(a) Physical state,

(b) Odour,
(c) Density as compared to air,

(d) Solubility.

Q.

For alkenes, generally boiling point of Cis form is higher than trans form - True or False?

1. True

2. False

Q. Arrange the following compounds in increasing order of their melting points.

1. Butane
2. Cis-2-butene
3. Trans-2-butene
4. Octane

Q.

Which of the following is TRUE for alkenes?

1. Alkenes have pi bonds (not all bonds)
2. Alkenes are more reactive than alkanes
3. Alkenes, especially the higher ones with 3 or more carbons can possibly exhibit geometrical isomerism
4. Alkenes are soluble in organic solvents

Q. Arrange the following alkenes in increasing order of their boiling points.

1. trans-But-2-ene
2. cis-But-2-ene
3. trans-Hex-3-ene
4. cis-Hex-3-ene

Q.

Which of the following is TRUE for alkenes?

1. Alkenes have pi bonds (not all bonds)
2. Alkenes are more reactive than alkanes
3. Alkenes, especially the higher ones with 3 or more carbons can possibly exhibit geometrical isomerism
4. Alkenes are soluble in organic solvents