Multiple Choice
Which of the following organic chemistry reactions is responsible for splitting H2O during the light reactions of photosynthesis?
3. Acids and Bases
Organic Chemistry Reactions
Struggling with Organic Chemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which of the following are possible outcomes of a base substitution reaction in organic chemistry?
A
Formation of an alkene
B
Formation of an ether
C
Formation of a ketone
D
Formation of an alcohol
Verified step by step guidance1
Understand the concept of a base substitution reaction: In organic chemistry, a base substitution reaction typically involves the replacement of a leaving group by a nucleophile, often leading to the formation of different types of compounds.
Consider the formation of an alkene: A base can abstract a proton from a β-carbon, leading to the elimination of a leaving group and the formation of a double bond, resulting in an alkene. This is known as an elimination reaction (E2 mechanism).
Consider the formation of an ether: Ethers are typically formed through a nucleophilic substitution reaction where an alkoxide ion (a strong base) attacks an alkyl halide, replacing the halide ion and forming an ether. This is an example of an SN2 reaction.
Consider the formation of a ketone: Ketones are generally formed through oxidation reactions or by the hydration of alkynes, not directly through base substitution reactions. Therefore, the formation of a ketone is not a typical outcome of a base substitution reaction.
Consider the formation of an alcohol: Alcohols can be formed when a nucleophile, such as a hydroxide ion, substitutes a leaving group in an alkyl halide, resulting in the formation of an alcohol. This is another example of an SN2 reaction.
0:29mWatch next
Master What you need to know about types of chemical reactions. with a bite sized video explanation from Johnny
Start learningRelated Videos
Related Practice
Organic Chemistry Reactions practice set
Problem sets built by lead tutorsExpert video explanations