WorksheetsNMAT MASTERCLASS - EXAM 2
Total questions: 25
Worksheet time: 2hrs 5mins
Which of the following is the chemical formula for Nitric acid?
HNO3
H3N
HNO2
HNO4
What is the name given to the compound N2O4?
Dinitrogen tetroxide
Dinitride tetroxide
Dinitrogen tetraoxygen
Nitrate tetraoxide
Which of the following is the correct chemical formula for Oxalic acid?
H2C2O4
HCrO4
H2C2O7
HCrO3
Which of the following is the chemical formula for bromous acid?
HBrO4
HBrO3
HBrO2
HBrO
What type of bond is formed when two nonmetals share electrons?
Ionic bond
Covalent bond
Metallic bond
Hydrogen bond
Which of the following is a polar covalent compound?
Cl2
KI
HBr
CH4
Based on the periodic trends for ionization energy, which element has the highest ionization energy?
Fluorine (F)
Nitrogen (N)
Helium (He)
Magnesium (Mg)
What is the general trend of electron affinity as you move from left to right across a period?
Decreases
Increases
Remains constant
Fluctuates
Which element has the highest ionization energy in period 2?
Li
B
N
Ne
Which of the following best describes electron affinity?
The energy required to remove an electron from an atom.
The energy change when an electron is added to a neutral atom.
The tendency of an atom to attract electrons in a bond.
The size of an atom’s electron cloud.
Which of the following has the largest ionic radius?
Na+
Mg2+
N3-
O2-
How does ionization energy change as you move down a group in the periodic table?
It increases
It decreases
remains constant
No change
What happens to the ionic radius when an atom gains electrons and becomes negatively charged?
Ionic radius decreases
Ionic radius increases
Ionic radius remains unchanged
Ionic radius becomes zero
Which element has the highest electronegativity?
Chlorine
Magnesium
Sulfur
Argon
Which element is most metallic?
H
Na
K
Rb
Which of the following is not isoelectronic with Al3+
F-
Ca2+
Na+
Ne
Which of the following is the correct electronic configuration for Mg2+ ion?
1s2 2s2 2p6 3s2
1s2 2s2 2p6 3s1
1s2 2s2 2p6
1s2 2s2 2p5
What is the maximum number of electron for p-subshell?
2
6
10
14
What does Hund’s rule state regarding electron configuration?
Electrons fill orbitals in pairs first.
Electrons occupy all available orbitals singly before pairing.
Electrons must have opposite spins in the same orbital.
The lowest energy orbitals are filled first.
Which of the following statements best describes the Pauli Exclusion Principle?
Electrons fill orbitals in order of increasing energy.
No two electrons in an atom can have the same set of four quantum numbers.
Electrons prefer to occupy degenerate orbitals singly before pairing up.
The energy levels of electrons are fixed and cannot change.
How many orbitals are present in a d-subshell?
1
3
5
7
What is the shape of p-orbital?
Spherical
Dumbbell
Clover
Complex shape
Which of the following element has the configuration [Ne] 3s2 3p1
Sodium
Aluminum
Nitrogen
Sulfur
Which of the following correctly describes the electron configuration for an element with atomic number 26 (iron)?
1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁶
1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 4p⁶
1s² 2s² 2p⁶ 3s² 3p⁶ 3d8
1s² 2s² 2p⁶ 3s² 3p⁶ 4p8
What is the chemical name for the compound CuSO4 * 2H2O
Copper (I) sulfate dihydrate
Copper (II) sulfate dihydrate
Copper (III) sulfate dihydrate
Copper (IV) sulfate dihydrate
