Multiple Choice
In the context of polymerase chain reaction (PCR), what is the second step of a PCR cycle?
3. Acids and Bases
Organic Chemistry Reactions
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Which of the following is not a type of organic chemistry reaction?
A
Nucleophilic substitution
B
Photosynthesis
C
Electrophilic addition
D
Oxidation-reduction
Verified step by step guidance1
Step 1: Understand the types of reactions listed. Nucleophilic substitution, electrophilic addition, and oxidation-reduction are common types of organic chemistry reactions.
Step 2: Nucleophilic substitution involves a nucleophile replacing a leaving group in a molecule. This is a fundamental reaction in organic chemistry.
Step 3: Electrophilic addition involves an electrophile adding to a molecule, typically seen in reactions involving alkenes and alkynes.
Step 4: Oxidation-reduction reactions involve the transfer of electrons between molecules, changing the oxidation states of atoms. These are crucial in organic chemistry for understanding changes in molecular structure.
Step 5: Photosynthesis is a biological process that converts light energy into chemical energy in plants, not a type of organic chemistry reaction. It involves complex biochemical pathways rather than simple organic reactions.
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