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15240672380's Question
Chemistry
Posted 4 months ago

Question 8 Not yet answered. Marked out of 3.00 P Riag question
P\mathrm{P} Fang queation
3-chloro-1-heptene

CH2\mathrm{CH} 2
Cl\mathrm{Cl}
CH3\mathrm{CH} 3
H\mathrm{H}
Br\mathrm{Br}
OH\mathrm{OH}

Question 9
Not yet answered
Marked out of 3.00
P flog quetion

Question 10
Not yel answered
Marked out of 3.00
✓\checkmark fieg question
3-ethyl-2methyloctane
2-bromo-5-methyl-3-heptyne
Br\mathrm{Br}
CH3\mathrm{CH} 3
C
H\mathrm{H}
CH2\mathrm{CH}_{2}
CH\mathrm{CH}
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Answer from Sia
Posted 4 months ago
For Question 8:
B
Key Concept
IUPAC naming and structure of alkenes
Explanation
The name "3-chloro-1-heptene" indicates a seven-carbon alkene with a chlorine substituent on the third carbon and a double bond starting at the first carbon. The Cl must be attached to the third carbon to match the name.


For Question 9:
A
Key Concept
IUPAC naming and structure of alkanes
Explanation
The name "3-ethyl-2-methyloctane" indicates an eight-carbon alkane with an ethyl group on the third carbon and a methyl group on the second carbon. The C2H5 (ethyl group) must be attached to the third carbon to match the name.


For Question 10:
E
Key Concept
IUPAC naming and structure of alkynes
Explanation
The name "2-bromo-5-methyl-3-heptyne" indicates a seven-carbon alkyne with a bromine atom on the second carbon, a methyl group on the fifth carbon, and a triple bond between the third and fourth carbons. The CH2 must be attached to complete the seven-carbon chain with the correct substituents.

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