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Class 11th Chemistry || Menu
  • Important
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  • Myth Buster
  • Some Basic Concepts of Chemistry
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  • Structure of Atom
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  • The p-Block Elements
    • Introduction to p- Block Elements
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    • Alkanes
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Spectrum, Class 11 Chemistry NCERT Solutions

Structure of Atom Q – 2.17, CBSE Chemistry Videos Class 11th Institutes
https://youtube.com/watch?v=zYM9u044YxU
Structure of Atom Q – 2.18, Class 11th Free Online Textbook Solutions
https://youtube.com/watch?v=VBNiPL2A6qc
Structure of Atom Q – 2.19, Learn Chemistry Online Classes Class 11th Education
https://youtube.com/watch?v=6WYSdKBhDkI
Structure of Atom Q – 2.20, CBSE Chemistry Class 11th Online Free Study Material
https://youtube.com/watch?v=mtGPLWjGzio
Structure of Atom Q – 2.21, Class 11th Free Online Chemistry Tutorials
https://youtube.com/watch?v=8sd6Di-BAT8
Structure of Atom Q – 2.22, Free Online Chemistry Classes Class 11th Students
https://youtube.com/watch?v=CnIPX6xzkQs
Structure of Atom Q – 2.23, Chemistry Class 11th Online NCERT Solutions & Videos
https://youtube.com/watch?v=-X64DZ1xTzc
Structure of Atom Q – 2.24, Chemistry Class 11th : Textbook Practice Test
https://youtube.com/watch?v=YP7mupR_Fj0
Structure of Atom Q – 2.25, Class 11th CBSE Online Classes Chemistry
https://youtube.com/watch?v=gVY-X4KpqaE

1. There will be total 20  MCQ in this test.
2. Please keep a pen and paper ready for rough work but keep your books away.
3. The test will consist of only objective type multiple choice questions requiring students to mouse-click their correct choice of the options against the related question number.
4. No negative marking for incorrect choice.
5. Please click on “Finish the Test” when you want to exit.
6. All the best – Happy Studying.

1. For Balmer series,the initial state n1 is :
 
 
 
 

Question 1 of 20

2. Calculate the wavelength of light that corresponds to the radiation that is given off during the transition of an electron from the n = 5 to n = 2 state of the hydrogen atom.
 
 
 
 

Question 2 of 20

3. Which of the following subatomic particles is responsible for the spectrum of radiation emitted by an element or compound?
 
 
 
 

Question 3 of 20

4. The total energy of an electron in the nth orbit of a hydrogen atom is given by the formula
En = -13.6 eV/n2. What does the negative energy for an electron indicate?
 
 
 
 

Question 4 of 20

5. Which of the following is not true about Bohr’s model of the atom?
 
 
 
 

Question 5 of 20

6. In the absorption spectrum, the wavelengths which are absorbed, are missing and they appear as:
 
 
 
 

Question 6 of 20

7. Many home bathrooms have infrared light fixtures to help warm the room, and this light is not cancer causing. Which of the following quality make it so useful?
 
 
 
 

Question 7 of 20

8. By use of a suitable filter, the green mercury emission line can be isolated. This line has a wavelength of 546.1 nm. What is the frequency? [1 Hz = 1 s-1]
 
 
 
 

Question 8 of 20

9. An electron falls from one energy level to another; it releases a certain amount of light with a frequency of 5.100 x 1014 Hz. What energy is associated with this electron?
 
 
 
 

Question 9 of 20

10. The energy associated with the transition of an electron from the n=1 state to the n=3 state of H atoms is:
 
 
 
 

Question 10 of 20

11. For Paschen series, the initial state n1 is :
 
 
 
 

Question 11 of 20

12. Zeeman effect is the splitting of spectral line in presence of:
 
 
 
 

Question 12 of 20

13. EM spectrum shows all forms of radiation except one of the followings:
 
 
 
 

Question 13 of 20

14. It takes 495.8 kJ/mol of energy to ionize sodium. What frequency (s-1) and wavelength (nm) of light would be required to ionize sodium?

2
 
 
 
 

Question 14 of 20

15. Which of the following is not a type of electromagnetic radiation?
 
 
 
 

Question 15 of 20

16. How much energy is needed to ionize a hydrogen atom if electron is present in n=1 orbit?
 
 
 
 

Question 16 of 20

17. Which of the following spectral series of line spectrum of hydrogen atom belongs to the ultra violet region?
 
 
 
 

Question 17 of 20

18. A Na lamp emits yellow light with a wavelength of 589 nm. What is the energy of a single photon in this light?
 
 
 
 

Question 18 of 20

19. Splitting of spectral line in presence of electric field is called:
 
 
 
 

Question 19 of 20

20. The atoms, molecules or ions that have absorbed radiation are said to be:
 
 
 
 

Question 20 of 20

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