1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
MissTica
3 years ago
5

Rank the following dienes in order of increasing stability:

Chemistry
1 answer:
gavmur [86]3 years ago
6 0

Answer:

1,2-pentadiene < 1,4-pentadiene < cis-1,3-pentadiene < trans-1,3-pentadiene

Explanation:

1,3-pentadiene have two double bonds which are in conjugation, due to which delocalization occur. Delocalization of electrons more provide stability to 1,3-pentadiene as compared to 1,4-pentadiene and 1,2-pentadiene.

Among cis form and trans form of 1,3-pentadiene, trans form is more stable beacuse of less steric hindrance.

1,2-pentadiene is an example of cumulated diene. 1,4-pentadiene is an isolated diene. Cumulated dienes are less stable as two double bonds are present on the same carbon which leads to high electron density.

So, 1,2-pentadiene will be the least stable.

Order of dienes from least stable to most stable is as follows:

1,2-pentadiene < 1,4-pentadiene < cis-1,3-pentadiene < trans-1,3-pentadiene

You might be interested in
Which of the following trends is indirectly proportional to effective nuclear charge, Zeff
Julli [10]

Answer : Option C) Atomic Size

Explanation : The atomic radius of the elements is found to be decreasing if we go from left to right in the modern periodic table. Accordingly, Z_{eff} increases as the number of shielding electrons present in the atomic nucleus of the periodic elements which lies in the same row remains constant while the number of protons in each atomic shell increases.

The effective nuclear charge Z_{eff} of an atom is defined as the net positive charge which is felt by the valence electron of the atomic element.

When Z_{eff} is observed to decrease, it is seen that the atomic radius grows in size. So, it explains the inverse relationship between both. This phenomenon occurs, because there is more screening of the electrons from the nucleus taking place, which is observed due to decrease the attraction between the electron and the nucleus.

7 0
3 years ago
Read 2 more answers
Which excerpt from amy tan's "fish cheeks" is most clearly an example of conflict?
nexus9112 [7]
Answer is: <span>d.and then they arrived - the minister's family and all my relatives in a clamor of doorbells and rumpled christmas packages. robert grunted hello, and i pretended he was not worthy of existence?
</span>Fish Cheeks is a narrative essay about Amy and her Chinese family. They had invited a minister's family for a traditional Chinese dinner. All evening <span>she is embarrassed by her family and by the food.</span>
3 0
3 years ago
Read 2 more answers
2A(g) + B(l) ⇌ 3C(aq) + D(s)
makvit [3.9K]

Answer:

B

[(0.75)^3(0.25)]÷[(0.50)^2(0.75)]

Explanation:

toppr dot com

8 0
3 years ago
Question # 10
satela [25.4K]
The answer should be D, cells can only create an identical copy of the original cell.
3 0
3 years ago
If an ultraviolet photon has a wavelength of 77.8 nm calculate the energy of one mole ultraviolet photon.
DerKrebs [107]

Answer:

Explanation:

E = (hc)/(λ)

E = (6.624x10^(-27))Js x ((3×10^8)ms^(-1)) /

(77.8x10^(-9)m)

E = 2.55 x 10^(-11) J

7 0
2 years ago
Other questions:
  • Which substance will require more energy to heat if all the samples have the same mass and same temperature change?
    15·1 answer
  • When an -OH group joins a hydrocarbon, an alcohol is formed. true or falsse
    9·1 answer
  • Which of these functional groups is found in all amino acids? -NH2 -OH =O -PO42-
    14·1 answer
  • A tank at is filled with of dinitrogen difluoride gas and of chlorine pentafluoride gas. You can assume both gases behave as ide
    6·1 answer
  • A ________ is the distance between the crests of successive waves.
    9·2 answers
  • Enter a net ionic equation for the reaction between nitric acid and calcium hydroxide.
    11·1 answer
  • When drawing a covalent lewis dot diagram its important to ensure that:
    15·1 answer
  • PLEASE HELP WILL GIVE BRANLIEST!!!!!!
    9·1 answer
  • What is the density of this cube?
    6·2 answers
  • Metal objects, such as knifes or bullets, that come into contact with bones can leave trace evidence on them.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!