4.5 - Organic I

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

Front (Question)

pure substances - e.g. element or a compound, melt and boil at

Back (Answer)

fixed temperature

Front (Question)

mixtures melt and boil

Back (Answer)

over a range of temperatures.

Front (Question)

hydrocarbon

Back (Answer)

a compound of hydrogen and carbon only

Front (Question)

A functional group

Back (Answer)

an atom or a group of atoms that determine the chemical properties of a compound

Front (Question)

a homologous series is a group of substances with:

Back (Answer)

• the same general formula • similar chemical properties because they have the same functional group • a trend (graduation) in physical properties

Front (Question)

isomers

Back (Answer)

molecules with the same molecular formula but with a different structure

Front (Question)

crude oil

Back (Answer)

a mixture of hydrocarbons

Front (Question)

describe how the industrial process of fractional distillation separates crude oil into fractions

Back (Answer)

Crude oil is separated by fractional distillation. Crude oil is heated and the oil evaporates. The gas goes into the fractional distillation tower. - As the gas rises the temperature falls. Fractions with higher boiling points condense –> collected nearer the bottom of the tower

Front (Question)

1 carbon

Back (Answer)

meth-

#10

Front (Question)

2 carbons

Back (Answer)

eth-

#11

Front (Question)

3 carbons

Back (Answer)

prop-

#12

Front (Question)

4 carbons

Back (Answer)

but-

#13

Front (Question)

5 carbons

Back (Answer)

pent-

#14

Front (Question)

6 carbons

Back (Answer)

hex-

#15

Front (Question)

prefix for compounds

Back (Answer)

MEPB monkeys eat peanut butter

#16

Front (Question)

alkanes - ane

Back (Answer)

C-C C-H

#17

Front (Question)

alkenes - ene

Back (Answer)

C=C

#18

Front (Question)

alcohols - ol

Back (Answer)

#19

Front (Question)

if given molecular formula is C2H6 what is the structural formula

Back (Answer)

C2 = two Cs H6 - six Hs CH3 CH3

#20

Front (Question)

addition reactions involve

Back (Answer)

one product

#21

Front (Question)

substitution reactions involve

Back (Answer)

two products

#22

Front (Question)

combustion involves reaction of a

Back (Answer)

fuel with oxygen if products are water and carbon dioxide its a hydrocarbon

#23

Front (Question)

how does fractional distillation separate crude oil into fractions

Back (Answer)

• oil heated in fractionating column • oil evaporates and condenses at diff temps • hydrocarbons in crude oil are separated into fractions • fractions contain molecules with similar number of carbon atoms • vaporised oil rises up column and fractions are tapped off at different levels where they condense

#24

Front (Question)

refinery gases used for

Back (Answer)

domestic heating and cooking