For the reaction: Part: 0/2 Part 1 of 2 + Identify each reactant as a nucleophile or electrophile. (Choose one) electrophile nucleophile + :Br: (Choose one) ▼ G
Catalysis and Enzymatic Reactions
Catalysis is the kind of chemical reaction in which the rate (speed) of a reaction is enhanced by the catalyst which is not consumed during the process of reaction and afterward it is removed when the catalyst is not used to make up the impurity in the product. The enzymatic reaction is the reaction that is catalyzed via enzymes.
Lock And Key Model
The lock-and-key model is used to describe the catalytic enzyme activity, based on the interaction between enzyme and substrate. This model considers the lock as an enzyme and the key as a substrate to explain this model. The concept of how a unique distinct key only can have the access to open a particular lock resembles how the specific substrate can only fit into the particular active site of the enzyme. This is significant in understanding the intermolecular interaction between proteins and plays a vital role in drug interaction.
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This image depicts a chemical reaction between a cycloalkyne and a bromine anion (\(:Br^-\)).
Part: 0 / 2
Part 1 of 2
**Identify each reactant as a nucleophile or electrophile.**
Chemical equation: Cycloalkyne + \(:Br^-\) → products
Under the equation, there are dropdown menus for each reactant labeled with the options "electrophile" and "nucleophile." The first dropdown option, selected, is "electrophile" for the cycloalkyne, and the second dropdown has not been selected for \(:Br^-\).
There are also buttons to submit your choice or reset the selection.
This exercise aims to help students understand the role of each reactant in a chemical reaction by identifying them as either nucleophiles or electrophiles.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F30851b88-5e79-4818-b8e1-05241e5cb3dc%2F732d180e-49c1-4f9a-aebe-2f592a282e28%2Fvr03o3a7_processed.jpeg&w=3840&q=75)
![**Question: Considering only electron density, will the above reaction occur? Select the single best answer.**
- ○ Yes
- ○ No
[There is a diagram in the image showing two buttons: an "X" and a circular arrow. This diagram likely represents a choice or selection interface, possibly allowing for selection or deselection.]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F30851b88-5e79-4818-b8e1-05241e5cb3dc%2F732d180e-49c1-4f9a-aebe-2f592a282e28%2F7shmfnk_processed.jpeg&w=3840&q=75)
Organic reagents can be divided into two categories electrophile and nucleophile on the basis of the electron donation or acceptance during a chemical reaction.
Electrophile: AThe positively charged or neutral species which is electron-deficient with no lone pair of electrons is known as an electrophile. An electrophile gains an electron pair during a chemical reaction.
Nucleophile: A negatively charged or neutral species that contains one or more lone pairs of electrons is known as a nucleophile. A nucleophile donates electron pairs during a chemical reaction.
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