Isomerism Flashcards

1
Q

Name the 3 pairs in isomerism

A

🔥alkene &cycloalkane
🔥alcohol &ethes
🔥carboxylic acid &esters

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2
Q

Give the IUPAC name for isooctane

⚡️when it says the IUPAC name it means you need to write that long ass name with methyls and numbers and shit

A

2, 2, 4 trimethyl

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3
Q

Give the IUPAC name of the position isomer of but-1-ene

When it’s talking about POSITION you have to change the chain length

A

But-1-ene C=C-C-C

But-2-ene C-C=C-C

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4
Q

Give the IUPAC name of the chain isomer of but-1-ene

A

Methylpropene because
☄️chain isomer is all about the chain lengths chaining
☄️you know by IUPAC it’s that long name with methyls wnd stuff

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5
Q

Draw the displayed formula of a functional group isomer of but-1-ene

So remember your pairs e.g. Alkenes and cycloalkane so but-1-ene is…

A

Cyclobutane

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6
Q

Give the general formula of the homologous series of straight chain bromoalkanes that contains one bromine atom per molecule

A

The general formula is literally in the name BROMOALKANE but instead of CnH2n+2 it’s CnH2n+1Br

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7
Q

State what is meant by the molecular formula ?

A

The actual numbe of atoms of each element in a molecule

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8
Q

State two characteristics of a homologous series

A

🌜same functional group

🌜same general formula

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9
Q

How many isomers have the molecular formula C5H12

A

3

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10
Q

How many structural isomers have the molecular formula C4H9Br

A

4

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11
Q

An alkane contains 30 hydrogen atoms per molecule. what is its empirical formula?

A

C7H15

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12
Q

A hydrocarbon W contains 92.3% carbon by mass. The relative molecular mass of W is 78.0

Calculate the empirical formula of W

Calculate the molecular formula of W

A

Mr = 78

C: H

  1. 3: 7.7. (/12)
    1: 1 EF= CH

12+1=13 78/13 =6. =C6H6

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13
Q

Name the following compound

CH3CH(CH)CH3

A

2-methylpropane

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14
Q

Name the following compound

CH3CH(Br)CH2Br

A

1,2 - dibromopropane

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15
Q

Name the following compound

CHCL=CHCL

A

1,2-dichloroethene

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16
Q

Name the following compound

CH3CH2CH2CH=CH2

A

Pent-1-ene

17
Q

Name the following compound

CH3COCH3

A

Propanone

18
Q

Name the following compound

CCl3COOH

A

Trichloroethanoic acid

19
Q

Name the following compound

CF(Cl)(Br)CH(Cl)(F)

A

1-Bromo-1,2-dichloro-1,2-difluoroethane

20
Q

Name this alkyl group:

CH3

A

Methyl

21
Q

Name this alkyl group:

CH3CH2

A

Ethyl

22
Q

Name this alkyl group:

CH3CH2CH2

A

Propyl

23
Q

What is the empirical formula of C9H18

A

CH2

24
Q

Name this compound:

CH3CH2CH2CH(CH3)CH3

A

2-methylpentane

25
Q

Pentane and 2-methylbutane are isomers. Name this type of isomerism

A

Chain isomerism