Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents

Your guest activity stays on this device

Sign in to save progress →
Sign in

Spectroscopy question

2021 · Q55
Guest · filters and generic practice availableBrowsing as a guest · PYQ filters and generic practice are available. Sign in only for personalised features and saved progress.
  1. PYQ Library
  2. /IIT JAM
  3. /Chemistry
  4. /Spectroscopy
  5. /2021 · Q55

Spectroscopy question

2021 · Q55

IIT JAMChemistrySpectroscopyNumerical+2 / −0
The separation of energy levels in the rotational spectrum of CO is 3.8626 cm −1^{-1}−1. The bond length (assume it does not change during rotation) of CO in Å (rounded off to two decimal places) is ‾\underline{\hspace{2cm}}​. (Given: Planck's constant h=6.626×10−34 J sh = 6.626 \times 10^{-34} \text{ J s}h=6.626×10−34 J s; NA=6.022×1023 mol−1N_A = 6.022 \times 10^{23} \text{ mol}^{-1}NA​=6.022×1023 mol−1; atomic mass of C is 12 g mol −1^{-1}−1; atomic mass of O is 16 g mol −1^{-1}−1; c=3×108 m s−1c = 3 \times 10^8 \text{ m s}^{-1}c=3×108 m s−1)
Numerical answer
View written solutionFree

Correct answer: 1.12, 1.14

PreviousNext

More from Spectroscopy

  • The force constant for H35Cl and D35Cl are the same and both can be considered as harmonic oscillators. H35Cl has a fundamental vibrational transition at 2886 cm−1. The…2020 · MCQ
  • At a certain wavelength, liquid P transmits 70%, whereas liquid Q transmits 30% of the incident light when separately placed in a spectrophotometric cell (path length = 1 cm). In a binary mixture of liquids P and Q (assume non-interacting…2020 · Numerical
  • The correct option for the number of bending modes of vibration in each of H2​O, CS2​ and SO2​ molecules, respectively, is2019 · MCQ
  • The number of vibrational mode(s) of a carbon dioxide molecule that can be detected using infrared spectroscopy is2019 · MCQ
  • Among the following, microwave active molecule(s) is/are2019 · Multiple correct
  • The magnetic field strength required to excite an isolated proton to its higher spin state with an electromagnetic radiation of 300 MHz is ​ Tesla (T). (Round off to two decimal places) [Magnetogyric ratio of…2019 · Numerical
  • For H 2​ molecule, the fundamental vibrational frequency (υˉe​) can be taken as 4400 cm −1. The zero-point energy of the molecule is ​ kJ mol −1 (rounded up to two decimal places). [h =…2018 · Numerical
  • IR active molecule(s) is/are2017 · Multiple correct