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As we all know, the CSIR-NET exam is very near, and there is no time left for revision. At this point, you must be seeking some ready-made authentic short revision notes or some important questions to practice just before the exam. How will you react if you get all these study materials in one place? It will be beneficial for you at this time, right! At BYJU'S Exam Prep, we come up with the Most Important Questions of Inorganic Spectroscopy for Chemical Sciences to help you score good marks, which our experienced Exam experts have meticulously designed.
So what are you waiting for? Scroll down the article below and start studying for the CSIR NET Exam; these questions will be fruitful during last-minute revision to fetch more marks in the exams. Students can also download it as a PDF file and save it for future purposes.
Inorganic Spectroscopy - Most Important Questions! (Download PDF)
1. Which of the following molecules is EPR inactive?
- B2
- O2
- O2 -2
- H2+
2. No. of signals in 31P NMR of P4S3 is:
- 2
- 3
- 4
- 5
3. No. of lines in Benzoquinone in EPR spectrum is:
- 5
- 6
- 8
- 4
4. In Mossbauer spectroscopy, we study ...........transitions using ......... radiation.
- valence electrons, X- rays respectively.
- Core electrons, X- rays respectively.
- Nuclear spin, cosmic rays respectively.
- Nuclear, gamma rays respectively.
5. Which of the following molecules shows an isomeric shift?
- [PtCl4]-2
- NH4+
- BF4-
- All of the above
6. For a complex of V+2 in zero-field splitting, no. of Kramers doublet will be?
- 4
- 2
- 1
- 6
7. Choose the correct statement:
- For a tetragonally elongated geometry, order of g is gx, gy > gz .
- For an achiral molecule, gx = gy ≠ gz.
- For an amorphous solid, gx = gy = gz, but the same is not true for gaseous.
- For tetragonally compressed geometry, gx, gy > gz.
8. Trans – [Ti (H2O)4(NH3)2]+2 has ......no. of lines.
- 180
- 36
- 72
- 360
9. What will be the sum of no. of signals observed for Fe in Mossbauer spectroscopy of Fe2(CO)9 and Fe3(CO)12.
- 2
- 4
- 5
- 3
10. Which of the following statements is incorrect about Mossbauer spectroscopy?
- It is also known as NGR.
- It is used to estimate the oxidation state of metal.
- This does not give any information about the symmetry of molecules.
- This spectroscopy is applicable to Au, Sn, Fe.
Solutions
Solution 1:
Solution 2:
Solution 3:
Solution 4:
In Mossbauer spectroscopy, we study nuclear transitions using gamma radiations. In this, we observe very broad signals because the energy difference between the levels is very high. Gamma radiations are the second most energetic radiations.
Solution 5:
In the given molecules, only BF4- shows isomer shift because both isomers have different chemical shift values. Boron has two isotopes: 10B, 11B. Due to the existence of isotopic shift, BF4- has two signals in 19F NMR with different chemical shift values.
Solution 6:
Solution 7:
Solution 8:
Solution 9:
Solution 10:
ANSWER KEYS
- C
- A
- A
- D
- C
- B
- D
- D
- D
- C
Download Important Questions on INORGANIC SPECTROSCOPY - Download PDF Here
Check Out:
- Study Notes for CSIR NET Life Science - (Download PDF)
- Study Notes for CSIR NET Chemical Science - Download PDF Here!
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