Atomic Structure (KVPY (Kishore Vaigyanik Protsahan Yojana) StreamSA (Class 11) Chemistry): Questions 1  7 of 30
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Question number: 1
» Atomic Structure » Electronic Configuration of Elements
Appeared in Year: 2013
Question
The number of valence electrons in an atom with electronic configuration 1s^{2} 2s^{2} 2p^{6} 3s^{2 }3p^{3} is
Choices
Choice (4)  Response  

a.  5 

b.  3 

c.  2 

d.  11 

Question number: 2
» Atomic Structure » Electronic Configuration of Elements
Appeared in Year: 2014
Question
The number of valence electrons in an atom with electronic configuration 1s^{2} 2s^{2} 2p^{6} 3s^{2 }3p^{6} is
Choices
Choice (4)  Response  

a.  9 

b.  5 

c.  2 

d.  8 

Question number: 3
» Atomic Structure » Rules for Filling Electrons in Orbitals
Appeared in Year: 2015
Question
The number of electrons required to reduce chromium completely in − to in acidic medium is
Choices
Choice (4)  Response  

a.  2 

b.  3 

c.  5 

d.  6 

Question number: 4
» Atomic Structure » Electronic Configuration of Elements
Question
Find out the groundstate electronic configuration of
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 5
» Atomic Structure » Rules for Filling Electrons in Orbitals
Appeared in Year: 2010
Question
Among _{3}, _{3}, _{2} and _{2}he compound that does not satisfy the octet rule is –
Choices
Choice (4)  Response  

a.  _{3} 

b.  _{2} 

c.  _{2} 

d.  _{3} 

Question number: 6
» Atomic Structure » Quantum Mechanical Model of Atom
Appeared in Year: 2011
Question
The set of principal (n), azimuthal (l) and magnetic (ml) quantum numbers that is not allowed for the electron in Hatom is
Choices
Choice (4)  Response  

a.  n = 3, l = 1, ml = –1 

b.  n = 2, l = 1, ml = 0 

c.  n = 3, l = 0, ml = 0 

d.  n = 2, l = 2, ml = –1 

Question number: 7
» Atomic Structure » Bohr Model of Hydrogen Atom
Question
According to Bohr’s theory, the electronic energy of the hydrogen atom in n^{th} Bohr’s orbit given by . Calculate the longest wavelength of light that will be needed to remove electrons from 3^{rd} Bohr orbit of ion.
Choices
Choice (4)  Response  

a. 


b.  2.76×10  18J 

c. 


d. 

