Ôn thi phổ B - Rapid Fire (Studying for the B Spectrum Exam)
Trả lời 15 câu hỏi
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- Which of the following molecule has no rotational spectrum?
- Bộ phận phân tách ánh sáng nào trong máy Quang phổ UV-Vis cho ánh sáng đơn sắc nhất:
- Stronger bonds absorb IR at
- Vân đạo phân tử LUMO là:
- Molecule than has a broad band at 3400 cm-1 and no sharp peak at around 1680 cm-1 is
- A frequency of a transition is 3.1 x10^10 Hz. What is the energy of this transition?
- Khi lá cây già chất diệp lục sẽ giảm, khi đó lượng carotenoid (lutein) và flavonoid tăng lên làm lá cây có màu vàn
- A shift to lower wavenumber for an absorption in a spectrum corresponds to:
- According to the Beer-Lambert Law, on which of the following does absorbance NOT depend?
- Chuyển dịch bathochromic effect là:
- What does the notation σ*← n mean?
- How do values of λ_max for the π*← π transitions vary among a series of conjugated polyenes?
- Which electronic transition has the largest wavelength?
- Lycopene (λ max=469 nm) is present in tomatoes. What color of light does lycopene absorb?
- Which statement is incorrect about CO2?
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