Analyzing Infrared Spectra
The electromagnetic radiation or frequency is classified into radio-waves, micro-waves, infrared, visible, ultraviolet, X-rays and gamma rays. The infrared spectra emission refers to the portion between the visible and the microwave areas of electromagnetic spectrum. This spectral area is usually divided into three parts, near infrared (14,290 – 4000 cm-1), mid infrared (4000 – 400 cm-1), and far infrared (700 – 200 cm-1), respectively. The number set is the number of the wave (cm-1).
IR Spectrum Of Cyclohexanone
It is the analysis of the structure of cyclohexaone using IR data interpretation.
IR Spectrum Of Anisole
Interpretation of anisole using IR spectrum obtained from IR analysis.
IR Spectroscopy
Infrared (IR) or vibrational spectroscopy is a method used for analyzing the particle's vibratory transformations. This is one of the very popular spectroscopic approaches employed by inorganic as well as organic laboratories because it is helpful in evaluating and distinguishing the frameworks of the molecules. The infra-red spectroscopy process or procedure is carried out using a tool called an infrared spectrometer to obtain an infrared spectral (or spectrophotometer).
![**Question:**
Which of the following alcohols would react the fastest with H₂SO₄?
**Options:**
- **A**: A
- **B**: B
- **C**: C
- **D**: D
**Images of Chemical Structures:**
Below the options, there are four chemical structures labeled A, B, C, and D:
- **Structure A**: A tertiary alcohol represented as a carbon atom connected to three other carbon atoms and an -OH group.
- **Structure B**: A secondary alcohol represented as a carbon atom connected to two other carbon atoms, a hydrogen atom, and an -OH group.
- **Structure C**: A tertiary alcohol with a nitro group (NO₂) on the adjacent carbon. The structure consists of a carbon atom connected to three other carbon atoms, an -OH group, and one of these carbon atoms is further bonded to a NO₂ group.
- **Structure D**: A primary alcohol represented as a carbon atom connected to two hydrogen atoms, a carbon atom, and an -OH group.
**Analysis:**
In the presence of H₂SO₄ (sulfuric acid), the alcohol that reacts the fastest is typically the one that can form the most stable carbocation intermediate. The stability of the carbocation intermediates generally follows the order: tertiary > secondary > primary. Therefore, tertiary alcohols are likely to react the fastest.
Given this information, examine the chemical structures and identify the tertiary alcohol(s): A and C.
Consider additional effects such as electron-withdrawing groups, which can affect the reactivity. For example, in structure C, the presence of a nitro group (an electron-withdrawing group) can destabilize the carbocation, making it less reactive compared to the standard tertiary alcohol in structure A.
Thus, the answer would be:
**Answer:** **A**
This educational content helps understand the factors affecting the reactivity of alcohols with sulfuric acid.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F02b9b2d6-1156-4992-8892-f825ad71518f%2Fe2a3bf65-8581-400b-aaf6-8e6cf120c33d%2Fn3dqc8m_processed.jpeg&w=3840&q=75)
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