1. The C=C double bond is....
- ...made of 2 pi bonds, overlapping end-on
- ....made of p-orbitals that overlap sideways to form a sigma bond, split in electron density above and below the nuclei plane
- ... not quite twice as strong as the C-C bond, due to the presence of the pi bond
- ... more than twice as strong as the C-C bond due to the electron-dense sigma bond
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Other questions in this quiz
2. What would this be called: CH3C(CH3)2CH2CH2OH
3. What is the C=C bond attacked by in addition reactions?
- An electrophile, such as H (d+)
- A nucleophile, such as Cl (d-)
- A base, such as OH-
- A nucleophile such as H (d+)
4. Is C2F4 (a) An organic compound? (b) A Hydrocarbon? (c) Saturated?
- (a) No, it has a halogen and no hydrogen (b) No, it doesn't contain H and Cs only (c) Yes, carbon can only make 4 bonds
- (a) Yes. It contains mainly carbon (b) No, it contains flourine (c) No, It has a double bond
- (a) Yes because it has Cs (b) Yes because it is organic (c) No because the carbons can have 2 more atoms bonded
- (a) No, It contains flourine (b) No, there is no hydrogen (c) Yes, it has the full number atoms bonded to each C
5. What is the catalyst for the hydration of ethene into ethanol?
- Potassium (VIII) manganate
- Phosphoric acid