NEET Chemistry Chapter Wise Mock Test – Atomic Structure

NEET Chemistry Chapter Wise Mock Test – Atomic Structure

Question 1:

Question 2:

Question 3:
Which of the following statements about the electron is incorrect?
(a) It is negatively charged particle
(b) The mass of electron is equal to the mass of neutron
(c) It is a basic constituent of all atoms
(d) It is a constituent of cathode rays

Question 4:

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Question 10:
The ratio of area covered by second orbital to the first orbital is
(a) 1 : 2
(b) 1 : 16
(c) 8 : 1
(d) 16: 1

Question 11:

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Question 13:

Question 14:
Atomic emission spectra of an element cannot be used to
(a) identify the atom
(b) determine the mass number of the nucleus of atom
(c) measure the difference in energy between pairs of stationary state of atom
(d) All of the above

Question 15:
In hydrogen spectrum, the different line of Lyman series are present in
(a) UV field
(b) IR field
(c) visible field
(d) far IR field

Question 16:

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Question 23:
The number of nodal planes in p_x is
(a) 1
(b) 2
(c) 3
(d) 0

Question 24:

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Question 26:
The two electrons in s-subshell will differ in
(a) principal quantum number
(b) azimuthal quantum number
(c) magnetic quantum number
(d) spin quantum number

Question 27:
If an electron has spin quantum number of + 1/2 and a magnetic quantum number of -1, it cannot be represented in a
(a) s-orbital
(b) p-orbital
(c) d-orbital
(d) f-orbital

Question 28:

Question 29:
If principal quantum number n = 4 , the total number of orbitals having l = 3 is
(a) 3
(b) 7
(c) 5
(d) 9

Question 30:
Direction (Q. NO. 31) In the following question, more than one of the answers given may be correct. Select the correct answers and mark it according to the codes.
Codes
(a) 1,2 and 3 are correct
(b) 1 and 2 are correct
(c) 2 and 4 are correct
(d) 1 and 3 are correct

Question 31:

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Question 34:

Question 35:
The number of d-electrons in Fe2+ (Z = 26) is not equal to the number of electrons in which one of the following?
(a) s-electrons in Mg (Z = 12)
(b) p-electrons in Cl (Z = 17)
(c) d-electrons in Fe (Z = 26)
(d) p-electrons in Ne (Z = 10)

Question 36:

Question 37:
What is the maximum numbers of electrons that can be associated with the following set of quantum numbers? n = 3, l =1, m = -1
(a) 6
(b) 4
(c) 2
(d) 10

Question 38:
Maximum number of electrons in a subshell with l= 3 and n= 4 is
(a) 14
(b) 16
(c)10
(d) 12

Question 39:
The correct set of four quantum numbers for the valence electron of rubidium atom (Z = 37) is
(a)5,1, 1, + 1/2
(b)6,0, 0, + 1/2
(c)5,0, 0, + 1/2
(d) 5,1, 0, + 1

Question 40:
Which of the following is non-permissible?
(a) n = 4, l = 3, m = 0
(b) n = 4, l = 2, m = 1
(c) n = 4, l= 4, m = 1
(d) n = 4, l= 0, m = 0

Question 41:
The ratio of the difference in energy between the first and second Bohr orbit to that between the second and the third Bohr orbit is
(a)1/2
(b)1/3
(c)4/9
(d)27/5

Question 42:

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Question 44:
The total number of atomic orbitals in fourth energy level of an atom is
(a) 16
(b) 32
(c) 4
(d) 8

Question 45:

Question 46:
Which of the following statement in relation to the hydrogen atom is correct?
(a) 3s, 3p and 3 d-orbitals all have the same energy
(b) 3s and 3p-orbitals are of lower energy than 3d-orbital
(c) 3p-orbital is lower in energy than 3d-orbital
(d) 3s-orbital is lower in energy than 3p-orbital

Question 47:
The wavelength of a spectral line emitted by hydrogen atom in the Lyman series is cm.
What is the value ofn2? (where, R= Rydberg constant)
(a) 2
(b) 3
(c) 4
(d) 1

Question 48:

Question 49:
Deuterium nucleus contains
(a) 1p + 1n
(b) 2p + On
(c) 1p + 1e
(d) 2p+ 2n

Question 50:

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