Inorganic Chemistry

Question 1

The region in space where an electron is most likely to be found is called

A. Orbital
B. Energy level
C. Shell
D. Nucleus

Answer 1

A. Orbital

Question 2

The constant known as the fundamental number of hydrogen is the

A. Rydberg constant
B. Planck’s constant
C. Fine-structure constant
D. Balmer constant

Answer 2

D. Balmer constant

Question 3

Arrange the following in increasing ionization energy:
(1) C (2) Na (3) Mg (4) B (5) N

A. 41532
B. 51432
C. 23415
D. 23514

Answer 3

C. 23514 (Na, Mg, N, C, B)

Question 4

Which of the following is an acidic oxide?

A. MgO
B. SO2
C. Na2O
D. CaO

Answer 4

B. SO2

Question 5

The theory that states that bonding is caused by overlapping of two orbitals.

A. Valence Bond Theory
B. Molecular Orbital Theory
C. Vital Force Theory
D. Valence Shell Electron-Pair Repulsion

Answer 5

A. Valence Bond Theory

Question 6

It states that no two atoms will have the same set of quantum numbers.

A. Heisenberg Uncertainty Principle
B. Pauli Exclusion Principle
C. Aufbau Building Up Principle
D. Hund’s Rule of Multiplicity

Answer 6

B. Pauli Exclusion Principle

Question 7

It is equivalent to the rate of disintegration of 1 gram of radium

A. Becquerel
B. Curie
C. Gray
D. Rem

Answer 7

B. Curie

Question 8

Which of the following particles cannot be accelerated in a particle accelerator?

A. Alpha
B. Electron
C. Neutron
D. Proton

Answer 8

C. Neutron

Question 9

It pertains to single bond, double bond, triple bond and those intermediate between single and double bonds, etc.

A. Bond Order
B. Bond Length
C. Bond Strength
D. Bond Degree

Answer 9

A. Bond Order

Question 10

The change in energy when an electron is accepted by a gaseous atom to form an anion

A. Electronegativity
B. Electron Affinity
C. Ionization Energy
D. Activation Energy

Answer 10

B. Electron Affinity

Question 11

What is the maximum number of electrons that can occupy the N shell?

A. 8
B. 18
C. 32
D. 50

Answer 11

A. 32

N shell (n=4). Use 2n².

Question 12

Without doing actual calculations, determine which of the following have masses greater than 1 mg: (a) 1 CO2 molecule, (b) 1 amu, (c) 6.02×10²³ H atoms, (d) 1 mol CO2, (e) 6.02×10²³ amu, (f) 1/(6.02×10²³) mol H atoms.

A. (a), (b), & (c) have masses > 1 mg
B. (b), (e), & (f) have masses > 1 mg
C. (c), (d), & (e) have masses > 1 mg
D. (d), (e), & (f) have masses > 1 mg

Answer 12

C. (c), (d), & (e) have masses > 1 mg