sp Hybridisation

Q.

What is a torsional strain?

Q. The structure of acetylene molecule is.

1. linear
2. tetrahedral
3. trigonal planar

Q. The angle between two sp hybrid orbitals is:

1. 180

Q.

What Is Hybridization of Carbon in Ethyne -${\mathrm{C}}_2{\mathrm{H}}_2$?

Q. Explain the formation of $BeC{l}_2$ molecules using hybridisation.
[2 Marks]

Q. If a double bond is stronger than single bond then why does Ethene break to form Ethane?

Q. The number of sp hybridised orbitals in ethyne molecule is ______.

1. one
2. two
3. three
4. four

Q. Arrange the following hydrocarbons on the basis of increasing bond length between carbon atoms:
Ethane, ethyne and ethene.

1. Ethane < ethene < ethyne
2. Ethane < ethene < ethyne
3. Ethane < ethyne < ethene
4. Ethyne < ethene < ethane

Q.

As a result of sp hybridization, we get:

1. Two mutual perpendicular orbitals

2. Two orbitals at 180°

3. Four orbitals in tetrahedral directions

4. Three orbitals in the same plane

Q.

C2H6 is the molecular formula of:

1. Propane

2. Ethene

3. Ethane

4. Butane

Q.

What is allotrophy and what are saturated and unsaturated hycarbons? Briefly

Q. Identify the molecule in which carbon atom is $\text{sp}$ hybridised.

1. Methane
2. Ethane
3. Ethyne
4. Ethene

Q. How many double bonds are there in a saturated hydrocarbon?

1. one
2. three
3. two
4. zero

Q.

s - character in ${sp}^3$ hybridization is:

1. 

2. 

3. 

4. None of these

Q. Why alkanes are less reactive?

Q.

If the following orbitals are hybridized, then the number of hybrid orbitals will be:
$2s$, $2p_x$, $2p_y$, $2p_z$

1. 1

2. 3

3. 4

4. 2

Q. Match the following types of hybridisation with the correct angle of orientation between its hybrid orbitals.

1. 180${}^{\circ }$
2. 120${}^{\circ }$
3. 109.5${}^{\circ }$

Q. Choose the coorect pair of hybridised orbital with its corresponding percenatge of s-character.

1. $sp$
2. 25%
3. $s{p}^3$
4. $s{p}^2$
5. 33%
6. 50%

Q. The structure of acetylene molecule is.

1. linear
2. tetrahedral
3. trigonal planar