MOD 5

Question 1

Are compounds having the SAME NUMBERS 7 KINDS of atoms but DIFFER in the way the atoms are ARRANGED.

Answer 1

ISOMERS

Question 2

Different carbon skeletons

Answer 2

SKELETAL

Question 3

Different functional groups

Answer 3

FUNCTIONAL

Question 4

Different position of functional groups

Answer 4

POSITIONAL

Question 5

the branch of chemistry concerned with the 3D STRUCTURES of molecules.

Answer 5

STEREOCHEMISTRY

Question 6

– Same molecular formula and constitution but different spatial (3D) arrangement of atoms
–SAME CONNECTIVITY

Answer 6

STEREOISOMERS

Question 7

Different arrangement due to rotation around a SINGLE BOND

Answer 7

CONFORMERS / ROTAMERS

Question 8

wedge line

Answer 8

FRONT

Question 9

dashed line

Answer 9

BACK

Question 10

solid lines

Answer 10

AT THE PLANE

Question 11

– The LOWEST-ENERGY, MOST STABLE conformation
– all six C–H bonds are as FAR AWAY from one another as possible

Answer 11

STAGGERED

Question 12

– The HIGHEST-ENERGY, LEAST STABLE conformation
– six C–H bonds are as CLOSE as possible

Answer 12

ECLIPSED

Question 13

methyl groups are FARTHEST apart

Answer 13

ANTI

Question 14

REPULSION as a result of trying to occupy the SAME SPACE

Answer 14

STERIC STRAIN

Question 15

cis

Answer 15

same side

Question 16

trans

Answer 16

not same side

Question 17

higher-priority groups on each carbon are on OPPOSITE SIDE of the double bond

Answer 17

E

Question 18

higher-priority groups are on the SAME SIDE

Answer 18

Z

Question 19

Any object can be viewed in a mirror, revealing its MIRROR IMAGE.

Answer 19

CHIRALITY

Question 20

The mirror image is IDENTICAL to the actual object.

Answer 20

SUPERIMPOSABLE

Question 21

The object and its mirror image are DIFFERENT.

Answer 21

NONSUPERIMPOSABLE

Question 22

The presence of a carbon atom bonded to FOUR DIFFERENT GROUPS

Answer 22

STEREOCENTER / CHIRALITY CENTER

Question 23

A molecule is ____ if it contains a plane of symmetry.

Answer 23

ACHIRAL

Question 24

Measures the amount of rotation

Answer 24

POLARIMETER

Question 25

Ability to rotate a beam of plane-polarized light

Answer 25

OPTICAL ACTIVITY

Question 26

to the right (clockwise)

Answer 26

Dextrorotatory

Question 27

to the left (counterclockwise)

Answer 27

Levorotatory

Question 28

50:50 mixture of enantiomers

Answer 28

RECEMETES / RACEMIC

Question 29

Stereoisomers that are NONSUPERIMPOSABLE mirror image

Answer 29

ENANTIOMERS

Question 30

Stereoisomers that are NOT mirror images of each other

Answer 30

DIASTEREOMERS

Question 31

Compounds that are ACHIRAL, yet contain stereocenters

Answer 31

MESO COMPOUNDS

Question 32

Objects that are NOT SUPERIMPOSABLE on their mirror images are called ___objects.

Answer 32

CHIRAL

Question 33

Priority substituent (1 → 2 → 3) is CLOCKWISE

Answer 33

R

Question 34

If an arrow from 1 → 2 → 3 is COUNTERCLOCKWISE

Answer 34

S

Question 35

a commonly prescribed medication sold under the trade name Prozac

Answer 35

Fluoxetine

Question 36

an extraordinarily effective antidepressant, but it has NO ACTIVITY AGAINST MIGRAINE.

Answer 36

RACEMIC FLUOXETINE

Question 37

works remarkably well in preventing migraine and is now undergoing clinical evaluation.

Answer 37

PURE S ENANTIOMER