
The major product of the following reaction is:

(A)
(B)
(C)

(D)

Answer
161.7k+ views
Hint: Given compound name is \[\left( 2-bromo-2-methyl\text{ }butyl \right)\] benzene and sodium ethoxide (\[{{C}_{2}}{{H}_{5}}ONa\]) which acts as a strong nucleophile reagent and also a strong base and thus, it tend to donate electron or seek cation. The reaction between both the compounds is followed by a substitution reaction (one nucleophile will substitute for another nucleophile).
Complete Step by Step Solution:
In a given compound \[\left( 2-bromo-2-methyl\text{ }butyl \right)\], bromine’s electronegativity is quite high as compared to carbon to which it is bonded. Due to its high electronegativity, it tends to attract a bond pair of electrons towards itself and become negatively charged. This results in creation of three-degree carbonation such as

The resultant compound is unstable because it is a charge compound and not neutral compound and it tends to get neutral by the attack of another nucleophile. Sodium ethoxide (\[{{C}_{2}}{{H}_{5}}ONa\]) and ethanol (\[{{C}_{2}}{{H}_{5}}OH\]) are strong nucleophilic reagents (electron-rich), attack on it and side product will be\[NaBr\](attacked by sodium ethoxide) or\[HBr\] (attack by ethanol) such as

The major product is obtained by nucleophile substitution in this reaction and products obtained by elimination reaction are minor.
Thus, the correct option is A.
Note: Bromine (leaving group) is a good nucleophile due to which substitution reaction is preferred. If in the place of bromine, a strong and bulky base is present then an elimination reaction takes place and the major product will be obtained by elimination reaction and not by a substitution reaction. Also, neutral species are more stable than charged species.
Complete Step by Step Solution:
In a given compound \[\left( 2-bromo-2-methyl\text{ }butyl \right)\], bromine’s electronegativity is quite high as compared to carbon to which it is bonded. Due to its high electronegativity, it tends to attract a bond pair of electrons towards itself and become negatively charged. This results in creation of three-degree carbonation such as

The resultant compound is unstable because it is a charge compound and not neutral compound and it tends to get neutral by the attack of another nucleophile. Sodium ethoxide (\[{{C}_{2}}{{H}_{5}}ONa\]) and ethanol (\[{{C}_{2}}{{H}_{5}}OH\]) are strong nucleophilic reagents (electron-rich), attack on it and side product will be\[NaBr\](attacked by sodium ethoxide) or\[HBr\] (attack by ethanol) such as

The major product is obtained by nucleophile substitution in this reaction and products obtained by elimination reaction are minor.
Thus, the correct option is A.
Note: Bromine (leaving group) is a good nucleophile due to which substitution reaction is preferred. If in the place of bromine, a strong and bulky base is present then an elimination reaction takes place and the major product will be obtained by elimination reaction and not by a substitution reaction. Also, neutral species are more stable than charged species.
Recently Updated Pages
JEE Main 2021 July 25 Shift 1 Question Paper with Answer Key

JEE Main 2021 July 22 Shift 2 Question Paper with Answer Key

JEE Main Mock Test Series Class 12 Chemistry for FREE

Classification of Drugs Based on Pharmacological Effect, Drug Action

JEE Electricity and Magnetism Important Concepts and Tips for Exam Preparation

JEE Energetics Important Concepts and Tips for Exam Preparation

Trending doubts
JEE Main Eligibility Criteria 2025

NIT Delhi Cut-Off 2025 - Check Expected and Previous Year Cut-Offs

JEE Main Seat Allotment 2025: How to Check, Documents Required and Fees Structure

JEE Mains 2025 Cut-Off GFIT: Check All Rounds Cutoff Ranks

NIT Durgapur JEE Main Cut-Off 2025 - Check Expected & Previous Year Cut-Offs

JEE Main 2024 Cut-off for NIT Surathkal

Other Pages
JEE Advanced 2025: Dates, Registration, Syllabus, Eligibility Criteria and More

Degree of Dissociation and Its Formula With Solved Example for JEE

Free Radical Substitution Mechanism of Alkanes for JEE Main 2025

JEE Advanced 2025 Notes

List of Fastest Century in IPL History

Verb Forms Guide: V1, V2, V3, V4, V5 Explained
