Orbital Hybridization

Question 1

What is hybridization

Answer 1

Hybridization can be defined as the phenomenon of mixing atomic orbitals of similar energies to form an equivalent number of entirely new orbitals of identical shape and energy called hybrid orbitals

Question 2

What are hybrid orbitals?

Answer 2

Hybrid orbitals are orbitals formed from the combination of two or more atomic orbitals with similar energies

Question 3

How many types of hybridization do we have

Answer 3

5

Question 4

Name the types of hybridization we have in organic chemistry

Answer 4

1. Sp
2. Sp²
3. Sp³
4. dSP³
5. d²SP³

Question 5

The number of hybrid orbitals generated is also equal to ________

Answer 5

atomic orbitals combined/mixed

Question 6

Hybridization happens only during ________ and not _________

Answer 6

Bond formation and isolated gaseous atom

Question 7

The smaller load of the hybrid orbitals always have ________ sign

The bigger load of the hybrid orbitals always have ________ sign

Answer 7

1. Negative
2. Positive

Question 8

How is SP³ hybridization formed

Answer 8

It is formed by One(1) “S” orbital and 3 “p” orbitals

Question 9

Tetrahedral Hybridization is also known as what?

Answer 9

SP³ hybrid orbitals

Question 10

The bond length of SP³ is _______?

Answer 10

154 picometer(Pm)

Question 11

The bond energy of Sp³ is _______

Answer 11

348KJmol

Question 12

Sp² hybridization is formed how?

Answer 12

It is formed when one “S” orbital and 2 “P” orbitals of equal energy are mixed together

Question 13

Sp² hybridization is also called?

Answer 13

Trigonal hybridization

Question 14

The bond angle is SP² hybridization is what?

Answer 14

120°

Question 15

The percentage ratio of S character to P character in SP² hybridization is what?

Answer 15

33.33% : 66.66%

Question 16

Examples of SP² hybridization are?

Answer 16

1. All compounds of Boron i.e BF3 and BH3
2. All compounds of carbon containing a carbon - carbon double bond. Ethylene (C2H4)

Question 17

The bond length of ethylene is

Answer 17

134pm

Question 18

The Bond angle in SP hybridization is

Answer 18

180°

Question 19

SP hybridization is also known as?

Answer 19

Diagonal Hybridization

Question 20

The ratio of S character to P character in SP hybridization is?

Answer 20

50% : 50%

Question 21

The Bond length in ethylene is?

Answer 21

120pm

Question 22

How many physical properties of organic chemistry do we have

Answer 22

3

Question 23

Name the physical properties of organic chemistry?

Answer 23

1. Bond Length
2. Bond Strength
3. Bond Rotation

Question 24

Hybrid orbitals are used to form what kind of bonds?

Answer 24

Sigma Bonds

Question 25

Uhybridized Orbitals are used to form what kind of bonds

Answer 25

π(Pi) bonds

Question 26

SP³ contains how many bonds? Name them

Answer 26

SP³ contains 1 bond which is sigma bond

Question 27

SP² contains how many bonds? Name them

Answer 27

SP² contains 2 bonds, which are 1 sigma bond and 1 pi bond

Question 28

SP contains how many kind of bonds? Name them

Answer 28

SP contains 3 bonds 1 sigma bond and 2 pi bonds

Question 29

Pi bonds are Stronger than Sigma bond True/False?

Answer 29

False

Question 30

Sigma Bonds are stronger than Pi bonds True/False

Answer 30

True

Question 31

Bond length is measured by what?

Answer 31

Neutron Diffraction

Question 32

Bond Strength is measured by what?

Answer 32

X-rays diffraction

Question 33

Bond Rotation is measured by?

Answer 33

Rotational Spectroscopy

Question 34

Bond dissociation energy for heterolytic is higher than homolytic True/False

Answer 34

True

Question 35

Bond dissociation energy for homolytic is higher than heterolytic True/False

Answer 35

False

Question 36

Bond dissociation energy for homolytic is lower than heterolytic True/False

Answer 36

True

Question 37

Pi Bonds can rotate True/False

Answer 37

False Pi bonds can't rotate because they are rigid

Question 38

How are Pi bonds created?

Answer 38

Pi bonds are created from overlapping P orbitals

Question 39

Double and Triple Bonds can't rotate Why?

Answer 39

Double and Triple Bonds can't rotate because of the presence of Pi bonds in them. It prevent these bonds from rotating

Question 40

What is Bond Strength

Answer 40

Bond Strength is defined as the strength with which a chemical bond holds two atoms together

Question 41

The amount of energy produced when one mole of bonds generated from isolated atoms in the gaseous is referred to as?

Answer 41

Bond Energy

Question 42

The amount of energy necessary to dissolve one mole of bond present between the atoms in gaseous molecules is referred to as?

Answer 42

Bond Energy

Question 43

The amount of energy necessary to homolytically fracture a chemical bond is known as?

Answer 43

Bond dissociation energy

Question 44

The energy required to break a chemical bond is known as?

Answer 44

Dissociation Energy

Question 45

Only diatomic compounds have bond dissociation energy equal to bond energy True/False

Answer 45

True

Question 46

The Si -F bond has the highest dissociation energy True/False

Answer 46

True

Question 47

What is Bond length?

Answer 47

Bond length is the measure of the distance between the Nuclei of two chemically bonded atoms in a molecule

Question 48

Bond energy is the average value of bond dissociation energies of all bonds of a particular type of molecule True/False

Answer 48

True

Question 49

What are the techniques for determining bond parameter experimentally?

Answer 49

1. Rotational Spectroscopy 2. X-rays diffraction 3. Neutron Diffraction

Question 50

What is Bond angle

Answer 50

Bond angle can be defined as the angle formed between two covalent bonds that originate from the same atom