Question:
Which of the following molecules will not display an infrared spectrum?
Which of the following molecules will not display an infrared spectrum?
Show Hint
- Heteronuclear molecules (e.g., CO\(_2\), HCl) show IR activity.
- Homonuclear diatomic gases (e.g., N\(_2\), O\(_2\)) do not absorb IR.
Updated On: Feb 4, 2025
- CO\(_2\)
- N\(_2\)
- Benzene
- HCCH
Hide Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Step 1: Understanding infrared activity.
- A molecule absorbs IR radiation if it has a change in dipole moment.
- N\(_2\) is non-polar and does not exhibit IR absorption.
Step 2: Selecting the correct option. Since N\(_2\) lacks a dipole moment, the correct answer is (B).
Was this answer helpful?
0
0
Top Questions on Spectroscopy
- In IR spectroscopy, which bond absorbs at the highest wavenumber?
- GATE CY - 2026
- Chemistry
- Spectroscopy
- Electromagnetic wave with intensity \( I = 4 \times 10^{14} \, \text{watt/m}^2 \) is propagating in free space. Find the amplitude of magnetic field \( B_0 \). Given: \( c = 3 \times 10^8 \, \text{m/s}, \epsilon_0 = 8.85 \times 10^{-12} \, \text{C}^2/\text{N} \cdot \text{m}^2 \).
- JEE Main - 2026
- Physics
- Spectroscopy
- . Number of different $\text{H}$-atoms in $(\text{Y})$
- JEE Main - 2026
- Chemistry
- Spectroscopy
- Among the following complex ions, the one which is EPR active is:
- OJEE - 2025
- Chemistry
- Spectroscopy
- The total number of hyperfine lines expected in the EPR spectrum of \(\cdot\)CHsubscript{2OH (radical) is ___________ (in integer).}
- GATE CY - 2025
- Chemistry
- Spectroscopy
View More Questions
Questions Asked in TANCET exam
- A, P, R, X, S, and Z are sitting in a row. S and Z are in the centre. A and P are at the ends. R is sitting to the left of A. Who is to the right of P?
- TANCET - 2024
- Statements and Conclusions
- In a new temperature scale say \( ^oP \), the boiling and freezing points of water at one atmosphere are \( 100^o P \) and \( 300^o P \) respectively. Correlate this scale with the Centigrade scale. The reading of \( 0^o P \) on the Centigrade scale is:
- TANCET - 2024
- Thermodynamics
- 138, 142, 146, 150, ?, 142, 138
- TANCET - 2024
- Statements and Conclusions
- Which is odd? Tortoise, Crab, Frog, Fish
- TANCET - 2024
- Statements and Conclusions
If A + B means A is the mother of B; A - B means A is the brother of B; A % B means A is the father of B, and A \(\times\) B means A is the sister of B, which of the following shows that P is the maternal uncle of Q?
- TANCET - 2024
- Statements and Conclusions
View More Questions