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JEE Main 20231 FebruaryEvening Shift
Exam
JEE Main
Year
2023
Date
1 February
Shift
Evening Shift
Subject
Chemistry
Chapter
Biomolecules

JEE Main 2023 · 1 February · Evening Shift · Chemistry · Biomolecules

All structures given below are of vitamin C . Most stable of them...

All structures given below are of vitamin CC. Most stable of them is:All structures given below are of vitamin C . Most stable of them is:All structures given below are of vitamin C . Most stable of them is:All structures given below are of vitamin C . Most stable of them is:All structures given below are of vitamin C . Most stable of them is:All structures given below are of vitamin C . Most stable of them is:

Options

  1. AFor a reaction A → B, E _ a = 10kJ/mol,Δ H = 5kJ/mol. Thus potential energy profile for this reaction is
  2. BFor a reaction A → B, E _ a = 10kJ/mol,Δ H = 5kJ/mol. Thus potential energy profile for this reaction is
  3. CFor a reaction A → B, E _ a = 10kJ/mol,Δ H = 5kJ/mol. Thus potential energy profile for this reaction is
  4. DFor a reaction A → B, E _ a = 10kJ/mol,Δ H = 5kJ/mol. Thus potential energy profile for this reaction is

Correct answer

A. For a reaction A → B, E _ a = 10kJ/mol,Δ H = 5kJ/mol. Thus potential energy profile for this reaction is

Step-by-step solution

The enediol is more stable as compared to other tautomers because the enol form is more stabilized by a favorable intramolecular hydrogen bond. This makes vitamin C to exist as conjugates ene-diol and, not as keto tautomer.

All structures given below are of vitamin C . Most stable of them is:

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