Atomic Structure And Chemical Bonding MCQs
Atomic Structure And Chemical Bonding MCQs
Answer these Atomic Structure And Chemical Bonding MCQs and assess your grip on the subject of Atomic Structure And Chemical Bonding. Scroll below and get started!
1: ……….. among the following has maximum number of unpaired electrons.
A. Cu+
B. Zn
C. Fe2+
D. Ni3+
2: Calculate the number of unpaired electrons present in the ground state of Fe3+. (At.no of Fe =26)
A. 5
B. 4
C. 3
D. 2
3: The electrons present in any main shell of a multi-electron atom do not have the same energy because:
A. They move along different paths
B. None
C. They move along same path
D. They have same angular momentum
4: Calculate the uncertainly in the position of an electron if the uncertainly in its velocity is 5.7 x 105 m/sec. (h = 6.6 x 10-34 kg m2 s-1, mass of electron = 9.1 x 10-31 kg)
A. None
B. ± 10-10 m
C. + 10-10 m
D. – 10 -10 m
5: Two particles C and D are in motion. If the wavelength of particle C is 5 x 10-8m. Calculate the wavelength of particle D if its momentum is half of C.
A. 10-9m
B. 10-5m
C. 10-6m
D. 10-7m
6: Calculate the frequency of the particle wave, if the kinetic energy of sub-atomic particle is 5.85 x 10-25 J. (h = 6.66 x 10-34 kg m2 s-1)
A. 1.76 x 108 s-1
B. 1.76 x 109 s-1
C. 2.34 x 108 s-1
D. 2.34 x 109 s-1
7: Which among the following is an example of an object possessing the character of both wave and particle?
A. Molecule
B. All
C. Piece of iron ball
D. Piece of chalk
8: Calculate the uncertainly in the velocity of a moving bullet of mass 10g, if the uncertainly in the position is 10-5 m.
A. 5.75 x 10-26 ms-1
B. 6.13 x 10-28 ms-1
C. 5.25 x 10-28 ms-1
D. 8.03 x 10-26 ms-1
9: The mass and wavelength of a moving body is 0.1 mg and 3.31 x 10-29 m respectively. Calculate its kinetic energy. (h = 6.625 x 10-34 J sec)
A. 3 x 10-5 J
B. 2 x 10-3 J
C. 2 x 10-5 J
D. 3 x 10-3 J
10: Bohr’s model of atom was based upon:
A. Electromagnetic wave Concept
B. Electromagnetic wave theory
C. Planck’s quantum theory
D. None
11: De-Broglie equation applies to:
A. Neutrons only
B. Electrons only
C. Protons only
D. All the material objects in motion
12: Degenerate orbitals are the orbitas of the:
A. Same subshell having equal energy
B. Different subshell having different energy
C. None
D. Same subshell having different energy
13: …….. has sp2 hybridization.
A. N2O
B. CO2
C. SO2
D. Co
14: Calculate the energy of the first stationery state of Li2+ if the ionisation energy of He+ is 19.6 x 10-18 J atom-1.
A. -4.41 x 10-17 J atom-1
B. +4.41 x 10-17 J atom-1
C. +2.13 x 10-17 J atom-1
D. -2.13 x 10-17 J atom-1
15: The mass of an electron is taken as 10-30 kg. The kinetic energy of an electron is 5 x 10-5 eV. Calculate the wavelength of the wave associated with the electron.
A. 2.06 x 10-7 m
B. 3.0 x 10-9 m
C. 1.73 x 10-7 m
D. 1.65 x 10-7 m
16: The numerical value of Planck’s constant is:
A. 6.6 x 10-50 J sec.
B. 6.6 x 10-34 J sec.
C. 6.6 x 10-36 J sec.
D. 6.6 x 10-25 J sec.
17: The ion that is isoelectronic with CO is:
A. CN-
B. N2+
C. O2-
D. O2+
18: The graph of probability versus distance is:
A. A curve
B. None
C. A straight line
D. Linear
19: Which among the following is an incorrect statement about the principle quantum number?
A. None
B. It gives the average distance of the electron from the nucleus
C. It determines the energy of the electron in hydrogen atom
D. It determines the size of the electron cloud
20: The radius for the first excited state (n = 2) orbit is 2.12 Å. Find the Bohr radius for the hydrogen atom (n = 1) in A.
A. 2.271
B. 0.700
C. 0.530
D. 1.530
21: Valence bond theory predicts that sulfur will use _____ hybrid orbitals in sulfur dioxide, so2.
A. Sp
B. Sp2
C. Sp3
D. Sp3d
E. Sp3d2
22: Proton pumps within the electron transport chain transport h+ ions __________.
A. From mitochondrial matrix to cytoplasm
B. From intermembrane space to cytoplasm
C. From cytoplasm to mitochondrial matrix
D. From mitochondrial matrix to intermembrane space
23: Solid crystals with _____ bonds are the best insulators.
A. Metallic
B. Covalent
C. Ionic
D. Hydrogen
24: The sp2 atomic hybrid orbital set accommodates ________ electron domains.
A. 2
B. 3
C. 4
D. 5
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Atomic Structure And Chemical Bonding MCQs
