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KEMORG Review 1 - Functional Groups and Alkanes

Total questions: 58

Worksheet time: 34mins

Name
Class
Date
1.

(3.1 - 3.2) what are not similar characteristics between elements of the same functional group

a)

mass

b)

chemical reactions

c)

boiling point

d)

melting point

e)

number of sigma bonds

2.

(3.1 - 3.2) What distinguishes the functional group from the rest of the molecule

a)

sigma bonds

b)

pi bonds

c)

heteroatoms

d)

Carbon

e)

lone pairs

3.

(3.1 - 3.2) What becomes the electrophilic (e- deficient) region in a functional group

a)

Hydrogen

b)

Carbon

c)

Heteroatom

d)

lone pair

4.

(3.1 - 3.2) breaking a pi bond makes a molecule more

a)

acidic

b)

basic

5.

(3.1 - 3.2) Which of the following has no functional group

a)

Alkanes

b)

Carboxylic Acids

c)

Amines

d)

Ethers

6.

(3.1 - 3.2) What contributes to an alcohol's reactivity

a)

sigma bonds

b)

polar bonds

c)

lone pair

d)

Carbon backbone

7.

(3.1 - 3.2) Benzene is (aliphatic/aromatic)

(a)  

8.

(3.1 - 3.2) CH3-Br is an

a)

alkyl halide

b)

alcohol

c)

Thiol

d)

sulfide

e)

ether

9.

(3.1 - 3.2) An aldehyde is a carbonyl group connected to ______

a)

Hydrogen

b)

Carbon Skeleton

c)

Hydroxyl group

d)

Amine group

10.

(3.1 - 3.2) What is not dictated by a molecule's functional group

a)

bonding / shape

b)

IMF

c)

Physical properties

d)

Chemical properties

e)

Radioactivity

11.

(3.3) Intermolecular forces (IMF) ordered from strongest to weakest

a)

Van der waals > dipole-dipole > Hydrogen bonding

b)

Dipole-Dipole > Hydrogen Bonding > Van der waals

c)

Hydrogen Bonding > Van der waals > dipole-dipoe

d)

Hydrogen Bonding > dipole-dipole > Van der waals

e)

Van der waals > Hydrogen bonding > dipole-dipole

12.

(3.3) What generally increases the strength of all IMF?

a)

ratio of neutrons to protons

b)

molar mass

c)

symmtery

d)

polarity

13.

What consists of van der waals forces

a)

permanent dipoles

b)

temporary dipoles

c)

induced dipoles

d)

ionic bonding

14.

(3.3) Smaller molecules are easily polarizable

a)

True

b)

False

15.

(3.3) What differentiates dipole-dipole interactions from Van der waals interactions

a)

dipole-dipole interactions are permanent

b)

dipole-dipole need to occur in polar molecules

c)

van der waals forces are stronger

d)

dipole-dipole interactions involve hydrogen

16.

(3.3) Hydrogen bonding occurs between hydrogen and ___________

a)

Oxygen

b)

Fluorine

c)

Nitrogen

d)

Sulfur

17.

(3.4) why does boiling point increase with the strength of IMF

a)

because they are both related to the polarity of the molecule

b)

because these forces are overcome to induce phase change

c)

it is just a coincidence

d)

because of covalent bond structure and their effects on stability

18.

(3.4) Aside from IMF strength, what influences the melting point of a compound

a)

surface area

b)

intra molecular forces

c)

vapor pressure

d)

symmtery

19.

(3.4) What is the fundamental rule of solubility ?

a)

like dissolves like

b)

unlike dissolves unlike

c)

opposite attract

d)

mass influences solubility

20.

(3.4) Which molecule dissolves in polar solvents

a)

C5H12

b)

CH3COOH

c)

Cholesterol

d)

Acetone (CH3COCH3)

21.

Hydrophobic molecules are _____ Hydrophilic molecules are _____

a)

Non polar, polar

b)

polar, non polar

c)

polar, polar

d)

non polar, non polar

22.

(3.5 - 3.8) Which is more likely to be water soluble, Vitamin A (20C, 1 OH group) or Vitamin C (6C, 6 Oxygen / Hydroxyl groups)

a)

A

b)

C

23.

(3.5 - 3.8) What statements are true about soap

a)

oils and germs are trapped by hydrophobic tail

b)

soap gets washed way with hydrophilic head

c)

hydrophilic head destroys bacteria cell structures

d)

soap is composed of a hydrophilic tail and a hydrophobic head

24.

(3.5 - 3.8) What parts of the ionophore are hydrophobic

a)

interior

b)

exterior

c)

in between the bilayer

d)

interior and exterior

25.

(3.5 - 3.8) What regions in a functional group induce a carbon to become electrophilic (acidic)

a)

lone pairs

b)

pi bonds

c)

Electronegative Heteroatom

26.

(3.5 - 3.8) What biomolecule comprises DNA

a)

Simple Sugars

b)

Amino Acids

c)

Lipids

d)

Nucleotides

27.

(4.1 - 4.2) What is the general formula for a cycloalkane with only 1 ring

a)

Cn H2n+2

b)

Cn H2n

c)

C2n Hn

d)

C2n+2 Hn

28.

(4.1 - 4.2) What is the hybridization scheme in the Carbons of an alkane

a)

sp

b)

sp2

c)

sp3

d)

sp3d

29.

(4.1 - 4.2) What form best represents the 3d structure of a molecule

a)

ball and stick

b)

lewis

c)

skeletal

d)

condensed

e)

newman projection

30.

(4.1 - 4.2) constitutional isomers have

a)

same formula

b)

diff atom arrangements

c)

same atom arrangements

d)

diff formula

31.

(4.1 - 4.2) the central carbon in propane is _____

a)

Primary

b)

Secondary

c)

Teritary

d)

Quaternary

32.

(4.3 - 4.6) Which part of nomenclature indicates the longest Carbon chain

a)

prefix

b)

parent

c)

suffix

33.

(4.3 - 4.6) what is the difference between an alkane and an alkyl group

a)

alkane is a parent, alkyl is a substituent

b)

alkyl is a parent, alkane is a substituent

c)

alkanes have more Hydrogens than alkyl

d)

alkanes have less Hydrogens than alkyl

34.

(4.3 - 4.6) How must one select a carbon chain

a)

longest

b)

shortest

c)

most substituents

d)

least substituents

35.

(4.3 - 4.6) How should one number carbons

a)

to give substituents higher numbers

b)

to give substituents lower numbers

c)

from left to right

d)

from right to left

36.

(4.3 - 4.6) A molecule has a 3 Carbon ring and a 6 carbon chain, It is ______

a)

cycloalkane

b)

alkane

c)

neither

d)

both, depends on reaction

37.

(4.3 - 4.6) Why do some molecules ignore IUPAC nomenclature conventions (e.g. cubane, churchane, basektane, housane)

a)

they are super important and don't require the rules

b)

they are using a different nomenclature system that is geometry based

c)

widely used and named before IUPAC rules were made

d)

this is part of IUPAC naming conventions

38.

(4.7 - 4.8) oil refinery takes advantage of which physical property of alkanes

a)

melting point

b)

boiling point

c)

density

d)

radioactivity

39.

(3.7 - 3.8) Alkanes, in comparison to other organic compounds with functional groups have (higher/lower) melting points and boiling points

(a)  

40.

(4.7 - 4.8) alkanes are_____ and so will dissolve in ______

a)

polar, water

b)

non polar, CCl4

c)

polar, CCl4

d)

non polar, water

41.

(4.9 - 4.13) eclipsed and staggered are examples of

a)

isomerism

b)

stereoisomerism

c)

conformations

d)

resonant structures

42.

(4.9 - 4.13) Dihedral angle in eclipsed conformations

a)

0

b)

60

c)

90

d)

180

43.

(4.9 - 4.13) what represents the atom in front in a newman projection

a)

dot

b)

circle

c)

line

d)

cube

44.

(4.9 - 4.13) which conformation is more stable

a)

staggered

b)

eclipsed

45.

(4.9 - 4.13) what is the angle between larger groups in the gauche conformation

a)

0

b)

60

c)

90

d)

180

46.

(4.9 - 4.13) this strain is a result of eclipsing / staggered interactions, usually between electrons

a)

angle

b)

torsional

c)

steric

47.

(4.9 - 4.13) zig zag skeletal structures indicate

a)

staggered

b)

eclipsed

c)

anti

d)

gauche

48.

(4.9 - 4.13) Angle strain causes cyclohexane to obtain a ________ shape instead of a flat hexagon

a)

octahedral

b)

boat

c)

chair

d)

zig zag

49.

(4.9 - 4.13) (a)   position is when hydrogen or carbon group is located perpendicular above or below the plane of the ring

(hint: eq****rial or ax**l)

50.

(4.9 - 4.13) When a ring flips, axial atoms stay axial and equatorial stay equatorial

a)

true

b)

false

51.

(4.9 - 4.13) Larger substituents prefer to be in _____ position

a)

equatorial

b)

polar

c)

axial

52.

(4.9 - 4.13) What form of steric strain is present in boat formation

a)

gauche strain

b)

flag pole strain

c)

oar strain

d)

anti strain

53.

(4.9 - 4.13) the larger the axial substituents ____

a)

the more stable the molecule

b)

greater difference between axial and equatorial conformations

c)

the more reactive the compound

d)

the greater IMF between non bonding groups

54.

(4.9 - 4.13) cis and trans isomers are examples of ____

a)

conformational isomerism

b)

constitutional isomerism

c)

stereoisomerism

d)

substitutional isomerism

55.

(4.14) What is oxidation in terms of organic molecules?

(tip: Z = heteroatom)

a)

more C-Z bonds

b)

less C-Z bonds

c)

more C-H bonds

d)

less C-H bonds

56.

(4.14) in combustion, carbon undergoes

a)

oxidation

b)

reduction

57.

(4.15) Lipids are biomolecules that are mainly ______

a)

polar

b)

non polar

58.

(3.1 - 3.2) What is the odd one out?

a)

ether

b)

amine

c)

ketone

d)

alcohol

e)

thiol

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