Quantum Mechanics Practice Quiz

40 Questions | By Scardinal5 | Updated: Oct 26, 2022 | Attempts: 1933

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Can you pass this quantum mechanics practice quiz? This is a test designed to help grade 12 University. Chemistry students practice quantum mechanics before a big unit test. Quantum mechanics is understood as a fundamental theory in physics that gives a description of the physical properties of nature. These theories are given at the scale of atoms and subatomic particles. Attempt these questions and learn more. All the best to you!

Questions and Answers

1.

A single bond contains what type of covalent bond?
- A.
  
  Sigma
- B.
  
  Pi
- C.
  
  Hydrogen
- D.
  
  Quantum
2.

A double bond contains what type of covalent bond?
- A.
  
  Sigma
- B.
  
  Pi
- C.
  
  Hydrogen
- D.
  
  Quantum
3.

A triple bond contains what type of covalent bond?
- A.
  
  Sigma
- B.
  
  Pi
- C.
  
  Hydrogen
- D.
  
  Sigma 2 Pi
4.

In Bohr's 2nd postulate, he stated a transition from a higher to lower energy state emits _____ and is called ______.
- A.
  
  Photons, dark line spectra
- B.
  
  Energy, dark line spectra
- C.
  
  Energy, bright line spectra
- D.
  
  Photons, bright line spectra
5.

In Bohr's 2nd postulate, he stated a transition from lower to higher energy state absorbs _____ and is called ______.
- A.
  
  Photons, dark line spectra
- B.
  
  Energy, dark line spectra
- C.
  
  Energy, bright line spectra
- D.
  
  Photons, bright line spectra
6.

Matter cut into smaller and smaller pieces would become the atom is a brief summary of which Atomic Theory?
- A.
  
  Present Theory
- B.
  
  Greek Atomic Theory
- C.
  
  Bohr's 1st Postulate
- D.
  
  Dalton's Model of the Atom
7.

Democritus and Leucippus stated that atoms were "cuttable."
- A.
  
  True
- B.
  
  False
8.

Select all that apply to an orbit as opposed to an orbital.
- A.
  
  3D path
- B.
  
  2D path
- C.
  
  Fixed Distance
- D.
  
  Variable Distance
- E.
  
  2 electrons per shell
- F.
  
  Circular or elliptical
- G.
  
  2n**2 electrons per shell
- H.
  
  No path, varied shape
9.

A "node" is the best place to find an electron.
- A.
  
  True
- B.
  
  False
10.

What does an Electron Level Diagram represent?
- A.
  
  The relative energy of electrons in various orbitals
- B.
  
  Fixed distance
- C.
  
  The position and momentum of a particle
- D.
  
  Organic Properties
11.

Dalton's model of the atom showed that atoms consist of invisible atoms.
- A.
  
  True
- B.
  
  False
12.

Which model of the atom is this?
- A.
  
  Plum Pudding Model
- B.
  
  Nuclear Model
- C.
  
  Bohr Model
- D.
  
  Quantum Mechanical Model
13.

When n = 5, the possible values of l are:
- A.
  
  0,1,2
- B.
  
  0
- C.
  
  0,1,2,3,4,5
- D.
  
  0,1,2,3,4
14.

Which type of orbital is not possible?
- A.
  
  3f
- B.
  
  6s
- C.
  
  2p
- D.
  
  4p
15.

This is the correct electron address for Oxygen. 1s22s22p6
- A.
  
  True
- B.
  
  False
16.

Which model of the atom is this?
- A.
  
  Plum Pudding Model
- B.
  
  Quantum Model
- C.
  
  Bohr Model
- D.
  
  Nuclear Model
17.

Which model of the atom is this?
- A.
  
  Quantum Mechanical Model
- B.
  
  Bohr Model
- C.
  
  Rutherford Model
- D.
  
  Plum Pudding Model
18.

Check off the elements which have electron promotion.
- A.
  
  Mobidium
- B.
  
  Chromium
- C.
  
  Copper
- D.
  
  Silver
19.

John Dalton created 3 laws of Atomic Theory. Which law did he NOT create?
- A.
  
  Law of Definite Composition
- B.
  
  Law of Multiple Proportions
- C.
  
  Law of Conservation of Mass
- D.
  
  Law of postulates
20.

VSEPR Theory stands for Valence Shell Electron-Pair Repulsion Theory.
- A.
  
  True
- B.
  
  False
21.

A _________ orbital is an orbital that forms from the combination of 2 other orbitals.
- A.
  
  Lewis
- B.
  
  Valence
- C.
  
  Shell
- D.
  
  Hybrid
22.

What does the "Law of Definite Proportion" entail?
- A.
  
  Elements combine in a characteristic mass ratio.
- B.
  
  There may be more than one mass ratio.
- C.
  
  Total mass remains, atoms cannot be created or destroyed in a reaction.
- D.
  
  Electrons orbit a positively charged nucleus.
23.

The "Raison Bun Theory" was created by JJ Thomson in 1897.
- A.
  
  True
- B.
  
  False
24.

Trigonal Planar and bent (3 pairs) structures have what bond angle?
- A.
  
  180
- B.
  
  120
- C.
  
  104.5
- D.
  
  107
25.

Who stated: The smallest particle of an atom was invisible, and an atom of one element is different than that of another?
- A.
  
  Thomson
- B.
  
  Rutherford
- C.
  
  Dalton
- D.
  
  Bohr