Question 1 (1 point) Infrared spectroscopy commonly deals with the _____ region

Question

Question 1 (1 point)

Infrared spectroscopy commonly deals with the _____ region of the electromagnetic spectrum?

Question 1 options:

ultra-violet

visible

infrared

Question 2 (1 point)

Bohr Model of the Atom has the planetary model:

Question 2 options:

of electron location: neutrons orbiting around the nucleus which contains protons and electrons

of electron location: protons orbiting around the nucleus which contains electrons and neutrons

of electron location: electrons orbiting around the nucleus which contains protons and neutrons

of electron location: electrons and neutrons orbiting around the nucleus which contains protons

Question 3 (1 point)

UV-Visible spectroscopy can be used to study chromophores such as C=C-C=C which absorb in the UV region of the electromagnetic spectrum ranging from _____.

Question 3 options:

400 - 600 nm

600 - 800 nm

100 - 300 nm

Question 4 (1 point)

Which of the following has the longest wavelength?

Question 4 options:

x rays

microwaves

UV light

Question 5 (1 point)

Electrons are located in the shell (n) which contains a definite number of them. Which formula gives the exact number, the maximum number of electrons per shell?

Question 5 options:

2 n2

2 n

2 n3

It depends on the mass number

It depends on the atomic number

Question 6 (1 point)

During a UV-Visible spectroscopy experiment, a student notes 2 wavelength peak measurements at 580nm and 685nm. What region of the electromagnetic spectrum were these peaks observed?

Question 6 options:

visible region

both ultra-violet and visible region

ultra-violet region

Question 7 (1 point)

Calculate the energy (in J) for yellow light, with a wavelength of 590 nm.

Question 7 options:

5.08 x 1014

3.37 x 10-19 J

3.37 x 10-10 J

3.37 x 10-29 J

Question 8 (1 point)

Which of the following sources of radiation has a longer wavelength?

Question 8 options:

visible light

infrared light

ultra violet light

Question 9 (1 point)

Calculate the wavelength for the following transitions in the Balmer series: n=3 n=2

Question 9 options:

434.0nm

410.2nm

486.1nm

656.5nm

Question 10 (1 point)

Which of the following sources of radiation is higher in energy?

Question 10 options:

ultra violet light

infrared light

visible light

ultra-violet

visible

infrared

Explanation / Answer

Q1)

INFRARED range (this should be obvious due to the name)

Q2)

Bohr model

of electron location: electrons orbiting around the nucleus which contains protons and neutrons

Q3)

UV-Visible spectroscopy can be used to study chromophores such as C=C-C=C which absorb in the UV region of the electromagnetic spectrum ranging from _____.

100 - 300 nm

Q4)

Which of the following has the longest wavelength?

microwaves have longer wavelenght and lowest frequency

Q5)

Electrons are located in the shell (n) which contains a definite number of them. Which formula gives the exact number, the maximum number of electrons per shell?

Correct answer is actually 2n^2

Q6)

During a UV-Visible spectroscopy experiment, a student notes 2 wavelength peak measurements at 580nm and 685nm. What region of the electromagnetic spectrum were these peaks observed?

visible region

NOTE: please consider posting in multiple questions and multiple set of Q&A. We are not allowed to answer to multiple questions in a single set of Q&A

of electron location: electrons orbiting around the nucleus which contains protons and neutrons

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