(2Q) Molecular Geometry and Polarity

Question 1

is the shape of a molecule predicted by considering both bond and lone electron pairs.

Answer 1

Electron Geometry

Question 2

Lone electron pairs are considered

Answer 2

Electron Geometry

Question 3

Number of total electron pairs considered.

Answer 3

Electron Geometry

Question 4

Shape of a molecule predicted by considering only bond electron pairs.

Answer 4

Molecular Geometry

Question 5

Lone electron pairs are not considered

Answer 5

Molecular Geometry

Question 6

Number of bonding electron pairs should be calculated.

Answer 6

Molecular Geometry

Question 7

►For two electron pairs in an atom to be as far apart as possible, they should be at 180o angle from each other

Answer 7

Linear

Question 8

Three electron pairs in an atom are widely separated at 120o angle to one another, forming an equilateral triangle

Answer 8

Trigonal Planar

Question 9

This arrangement of electron pairs reduces repulsions among four sets of electron pairs. The angle between any two electron pairs is 109.5o

Answer 9

TETRAHEDRAL

Question 10

AX2

Answer 10

Linear

Question 11

AX3

Answer 11

Trigonal Planar

Question 12

AX2E

Answer 12

Trigonal Planar

Question 13

AX4

Answer 13

Tetrahedral

Question 14

AX3E

Answer 14

Pyramidal

Question 15

AX6

Answer 15

Octahedral

Question 16

can be used to predict the nature of the chemical bond that can exist between atoms

Answer 16

Electronegativities

Question 17

The larger the electronegativity difference between
the atoms, the more _________ the bond will be.

Answer 17

polar

Question 18

has the highest electronegativity difference and are therefore the most polar of the chemical bonds

Answer 18

Ionic bonds

Question 19

may be polar or nonpolar depending on the electronegativities of the atoms involved

Answer 19

Covalent bonds

Question 20

is a physical property of compounds which relates other physical properties such as solubility, boiling and melting points and intermolecular interactions between molecules.

Answer 20

Polarity

Question 21

It is a measure of how equally the electrons in a bond are
distributed between the two atoms involved in a covalent
bond

Answer 21

Polarity

Question 22

______ increases since there is a shift in electron density towards the more electronegative atom.

Answer 22

Polarity

Question 23

Higher the value of net dipole moment, the more
_____ is the molecule

Answer 23

polar

Question 24

affected by the shape of the molecule.

Answer 24

net dipole moment