Which of the following alkenes are terminal alkenes? Which of the following alke

Question

Which of the following alkenes are terminal alkenes? Which of the following alkenes are internal alkenes? Which of the statements about the properties of the carbon-carbon double bond is not true? A) There is restricted rotation around the carbon-carbon double bond. B) Whenever the two groups on each end of a carbon-carbon double bond are the same, two diastereomers are possible. C) Trans alkenes are generally more stable than c is alkenes. D) The stability of the carbon-carbon double bond increases as the number of substituent groups increases. Calculate the degree of unsaturation for a molecule with molecular formula C_6H_11Cl. A) B) 2 C) 3 D) 0 Calculate the degree of unsaturation for a molecule with molecular formula C_6H_9N. A) 2 B) 3 C) 4 D) 5 What is the IUPAC name for the following compound?

Explanation / Answer

We know that,

Degree of Unsaturation or DBE = Number of C-atoms+1- [Number of hydrogen atoms+Number of monovalent atoms- Number of trivalent atoms]/2

By applying this formula you can calculate for both the molecular formula.

Q4. Degree of Unsaturation for C6H11Cl= 6+1-[11+1]/2 = 7- 12/2 = 7-6 = 1 Answer: (A)

[ Hints: Cl is monovalent atom here ]

Q5. Degree of Unsaturation for C8H9N= 8+1- [9-1]/2 = 9- 8/2 = 9-4 = 5 Answer: (C)

[ Hints: N is trivalent atom here ]   

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