Chemistry questions, please help!?

2016-06-20 6:06 am
1. Which of the following would be named with a name that ends in -ane?
a) CH3-CH2-CH3
b) CH3-CHdouble bondCH-CH3
c) CHtriple bondC-CH2-CH3
d) CH3-CH2-CH2-CHdouble bondCH2

2. What is the name of this molecule?

A straight chain of four carbons. There is a triple bond between the first and second carbons when counting from left to right.
更新1:

1. Which of the following would be named with a name that ends in -ane? a) CH3-CH2-CH3 b) CH3-CHdouble bondCH-CH3 c) CHtriple bondC-CH2-CH3 d) CH3-CH2-CH2-CHdouble bondCH2 2. What is the name of this molecule? A straight chain of four carbons. There is a triple bond between the first and second carbons when counting from left to right. CH=C-CH2-CH3

回答 (2)

2016-06-20 7:08 am
1.
CH₃-CH₂-CH₃ is an alkane, and its name ends in -ane.
CH₃-CH=CH-CH₃ and CH₂-CH₂-CH₂-CH=CH₂ are alkenes, and their names end in -ene.
CH≡C-CH2-CH3 is an alkyne, and its name ends in -yne.

The answer is : a) CH₃-CH₂-CH₃


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2.
CH≡C-CH₂-CH₃

The name is 1-butyne (in U.S.) or but-1-yne (in U.K.).
2016-06-20 6:30 am
Only a), propane.
But-2-yne, chchch2ch3


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