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Chemistry > NOMENCLATURE > Flashcards

NOMENCLATURE Flashcards

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1
Q

iupac name=

A

prefix(side chain)+rootword(main chain)+suffix

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2
Q

suffix is divided into

A 
primary suffix(saturation+unsaturation)
secondary suffix(functional group)
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3
Q

what is prefix

A

it indicates side chains or substituents in organic compound

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4
Q

what is methyl and ethyl

A

SEE STRUCTURES

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5
Q

what is ethenyl

A

SEE STRUCTURES

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6
Q

what is ethynyl

A

SEE STRUCTURES

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7
Q

what is 1-propynyl

A

SEE STRUCTURES

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8
Q

what is rootword

A

indicates number of carbons in parent chain

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9
Q

write all the rootwords

A

SEE STRUCTURES

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10
Q

primary suffix

A

indicates saturation or unsaturation

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11
Q

what is secondary suffix

A

indicates information about functional group

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12
Q

rule for selecting parent chain

A

longest possible carbon chain is selected as the parent chain

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13
Q

if a compound has 2 or more chains then

A

chain with more number of substituents is considered as parent chain

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14
Q

what about unsaturated compounds

A

chain with max no of unsaturations is considered as parent chain

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15
Q

what about compounds with functional groups

A

the chain which contains functional group is considered as parent chain

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16
Q

if two identical functional groups are present?

A

chain which covers both functional groups is called parent chain

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17
Q

which is given most priority in numbering the parent chain

A

lowest locant rule

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18
Q

what is lowest locant rule

A

numbering is done such that substituent gets lowest possible number

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19
Q

if 2 or more substituents are present at the same position

A

numbering is done with lowest sum rule

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20
Q

what about unsaturated compounds

A

unsaturation gets lowest possible number

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21
Q

if double and triple bond are present at the same distance then

A

double bond is given more priority

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22
Q

what about compounds with functional groups

A

functional group gets lowest possible number

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23
Q

if 2,3,4 identical substituents are present in a compound

A

words like di tri tetra are used

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24
Q

if different substituents are there

A

follow alphabetical order

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25
Q

IF TWO SUBSTITIUENTS ARE FOUND IN EQUIVALENT POSITIONS

A

THE LOWER ONE IS GIVEN TO THE ONE COMING FIRST IN THE ALPHABETICAL ORDER

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26
Q

what words are considered in ALPHABETICAL ORDER

A

ISO AND NEO ARE CONSIDERED WHILE SEC AND TERT ARE NOT CONSIDERED di tri and tetra are not considerd

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27
Q

bis ,tris, tetrakiss words are used when

A

when two complex compounds are connected to a single carbon atom

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28
Q

order of priority(first 5)

A 
cooh
so3h
coor
cox
conh2
29
Q

order of priority(2nd 5)

A 
cn 
nc 
cho
ketone
oh
30
Q

order of priority(3rd 5)

A 
sh
nh2
ether
alkene
alkyne
31
Q

order of priority(4th 5)

A

no2
no
halogen

32
Q

the c in cooh is always?

A

the first carbon in the parent chain

33
Q

what is the other name of 3-formyl propan1-oic acid

A

4-oxobutan-1-oic acid

34
Q

what is the parent chain in ethers

A

the longest carbon chain

35
Q

example of ester

A

SEE STRUCTURES

36
Q

what is the common name snd structure of anhydRIDES

A

alkanoic anhydride

SEE STRUCTURES

37
Q

what are primary, secondary and tertiary amides

A

SEE STRUCTURES

38
Q

how to name primary, secondary and tertiary amide

A

SEE STRUCTURES

39
Q

what is the iupac name of isocyanides

A

alkanecarbylamine

40
Q

what are primary, secondary and tertiary amines

A

SEE STRUCTURES

41
Q

how to name primary, secondary and tertiary amine

A

SEE STRUCTURES

42
Q

what is the name when cooh is attached to benzene OR CYCLOALKANE

A

carboxyllic acid

43
Q

what is the name when conh2 is attached to benzene OR CYCLOALKANE

A

carboxamide

44
Q

what is the name when cocl is attached to benzene OR CYCLOALKANE

A

carbonyl chloride

45
Q

what is the name when coh is attached to benzene OR CYCLOALKANE

A

carbaldehyde

46
Q

what is the name when cn is attached to benzene OR CYCLOALKANE

A

carbonitrile

47
Q

what is the name when coor is attached to benzene OR CYCLOALKANE

A

alkyl carboxylate

48
Q

when is ring given priority during nomenclature

A

if the no of c in connecting chain is less than or equal to no of c in ring

49
Q

when is chain given priority during nomenclature

A

if the no of c in connecting chain is greater than no of c in ring

50
Q

other name of methanol

A

carbinol

51
Q

other name of ch3ch2oh

A

methyl carbinol

52
Q

other name of 2methyl propan-2 -ol

A

trimethyl carbinol

53
Q

in bicyclo compounds the numbering goes along

A

largest bridge

54
Q

the number of carbons in bicyclo compounds are in?

A

decreasing order

55
Q

write structure of 2-methyl bicyclo(2,2,2)octane

A

SEE STRUCTURES

56
Q

numbering is independent of

A

functional group

57
Q

in spiro compounds the numbering goes along

A

small ring

58
Q

structure of 5-methyl spiro(2,4)heptane

A

SEE STRUCTURES

59
Q

if there is a cho and oh in a cyclo compound then

A

then oh acts as a substituent and is given same peiority as methyl

60
Q

HOW TO NUMBER ALICYCLIC COMPOUNDS

A

THE SUBSTITIUENT WHICH COMES FIRST IN THE ALPHABETICAL ORDER IS GIVEN THE LOWEST NUMBER AND IS ALSO ACCORDING TO LOWEST SUM RULE

61
Q

IF SIDE CHAIN CONTAINS FUNCTIONAL GROUP OR A MULTIPLE BOND THEN

A

ALICYCLIC RING BECOMES SUBSTITUENT IRRESPECTIVE OF SIZE OF THE RING

62
Q

IF MORE THAN 1 ALICYCLIC RING IS ATTACHED TO A SINGLE CHAIN

A

IT IS NAMED AS CYCLOALKYL ALKANE

63
Q

IF DOUBLE OR TRIPLE BOND ARE PRESENT IN THE RING THEN

A

NUMBERING IS DONE SUCH THAT MULTIPLE BOND GETSB LOWEST NUMBER

64
Q

EXPLAIN THE NAMING OF 1,6DIMETHYL CYCLOHEX1-ENE

A

COZ PRIORITY IS GIVEN TO THE CARBON IN THE DOUBLE BOND WHICH IS ATTACHED TO METHYL GROUP

65
Q

IF RING CONTAINS MULTIPLE BOND AND SIDE CHAIN CONTAINS FUNCTIONAL GROUP

A

THEN RING IS SUBSTITUENT

66
Q

IF RING AND CHAIN BOTH HAVE FUNCTIONAL GROUPS

A

IF SIDE CHAIN HAS HIGHER PRIORIT FUNCTIONAL GROUP THEN THE RING BECOMES THE SUBSTITUENT

VICE VERSA

67
Q

IF RING AND CHAIN BOTH HAVE SAME FUNCTIONAL GROUPS

A

IF THE NUMBER OF CARBONS IN RING IS EQUAL OR GREATER THAN THAT OF SIDE CHAIN THEN RING BECOMES Parent chain

68
Q

if ring is connected to benzene

A

benzene is parent chain

69
Q

if an alicyclic ring is directly connected to carbon containing functional group

A

then the c atom of functional group is not included in parent chain and the special type of naming is used

Chemistry (7 decks)

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