Week 8 - Functional Groups in Organic Molecules Abnd Spectrophotometer

Question 1

Responsible for the characteristic chemical and physical properties of those molecules

Answer 1

Specific groups of atoms within molecules

Question 2

Functional group

Answer 2

The site of reactivity in an organic molecule

Question 3

C=C double

Answer 3

Functional group

Question 4

Atoms of functional groups are linked together within the molecule by

Answer 4

Covalent bonds

Question 5

Usually referred to in the context of organic chemistry / organic compounds

Answer 5

Functional groups

Question 6

Hydrocarbons are chemical combo consisting of

Answer 6

Carbon and hydrogen

Question 7

Consisting of only single bonds between carbon atoms

Answer 7

Saturated hydrocarbons

Question 8

With double or triple bonds

Answer 8

Unsaturated hydrocarbons

Question 9

Consist of hydrogen bonded to carbon rings

Answer 9

Cycloalkanes (hydrocarbons)

Question 10

Contain a chemical structure known as an aromatic ring (benzene)

Answer 10

Aromatic hydrocarbons

Question 11

-ane

Single bonds

Answer 11

Saturated hydrocarbon

Alkanes

Question 12

Carbon and hydrogen only

Carbon to carbon bond (C=C)

-ene

Answer 12

Unsaturated hydrocarbons

Alkenes

Question 13

-yne

Carbon to carbon triple bond

Answer 13

Unsaturated hydrocarbon

Alkynes

Question 14

-OH group in a covalent bond is known as

Answer 14

Hydroxyl group

Question 15

Composed of a carbon atom double bonded to an oxygen atom : C=O

Answer 15

Carbonyl group

Question 16

Under mike oxidation conditions, alcohols can convert to:

Answer 16

Aldehydes and ketones

Question 17

The carbonyl group must be at the end of a carbon chain

Answer 17

Aldehyde

Question 18

H
                       |
            H —.  C — OH
                       |
                      H

Answer 18

Methanol

Question 19

H     H
                           |      |
               HO — C — C — OH
                           |.      |
                           H     H

Answer 19

Ethylene glycol (antifreeze ) OHCH2CH2OH

Question 20

H
                     |
                     C = O
                     |
                     H

Answer 20

Formaldehyde CH2O

Question 21

Responsible for many flavours and odours in foods and perfumes

Answer 21

Ketones

Question 22

O
||
CH3— C —CH3

Answer 22

Acetone

Question 23

—COOH

                O
                ||
       R — C — OH

Answer 23

Carboxyl group - organic acids

Question 24

Made from two hydrocarbon chains joined by a COO group

Alkylalkanoate

Answer 24

Esters

Question 25

Broken down into organic acids and alcohols

Fats and oils are:

Answer 25

Esters

Question 26

Organic compounds containing an amino/ functional group (NH2) are called ________

Derivatives of ammonia (NH3) are ______

Neutralize acids by absorbing H+

Weak bases

Answer 26

Amines

Question 27

Have NH2 and C=O groups on the same carbon atom

Contain a carbonyl group followed by either NH2 or NHR

Alkanamide

Answer 27

Amides

Question 28

High energy compounds are formed by linking several phosphates together

Answer 28

Phosphates

Question 29

Group of atoms within a molecule that interact in predictable ways

Answer 29

Functional group

Question 30

Optical instrument for measuring the intensity of light relative to wavelength

Answer 30

Spectrophotometer

Question 31

Used to measure the concentration of solutes in a solution by measuring the amount of light that is absorbed by the solution in a cuvette placed in the spectrophotometer

Answer 31

Electromagnetic radiation