Chemistry Quiz Challenge
Chemistry Quiz Challenge
Test your knowledge of chemistry with our comprehensive 26-question quiz! Dive into topics ranging from atomic structure to molecular geometry and find out how well you understand the principles that govern chemical interactions.
Each question is designed to challenge your understanding and enhance your learning experience.
- Multiple choice format
- Covering various chemistry concepts
- Perfect for students and enthusiasts alike
The number of atomic orbitals in a d sub shell is
1
2
3
5
7
Electrons in an orbital with a spherical shape are in an
D orbital
F orbital
G orbital
P orbital
S orbital
A ground-state atom of manganese has ____ unpaired electrons and is ___.
0, diamagnetic
2, diamagnetic
3, paramagnetic
5, paramagnetic
7, paramagnetic
The general electron configuration for atoms of all elements in group 5A is
Ns^2np^6
Ns^2np^4
Ns^2np^3
Ns^2np^1
The general electron configuration for atoms of the halogen group is
Ns^2np^6
Ns^2np^5
Ns^2np^6(n-1)d^7
Ns^1. E. ns^2np^7
In what group of the periodic table is the element with the electron configuration [Ar]4s^23d^104p^3
1A
2A
3A
4A
5A
What is the charge on the monatomic ion of nitrogen, the nitride ion?
+2
+1
-1
-2
-3
Which of these species make an isoelectronic pair: Cl-, O^2-, F, Ca^2+, Fe3+?
Ca^2+ and Fe^3+
O^2- and F
F and Cl^-
Cl^- and Ca^2+
None of these
The electron configuration of a cobalt (II) ion is
[Ar]3d^7
[Ar]4s^23d^5
[Ar]4s^23d^3
[Ar]3d^6
[Ar]4s^23d^9
Which of these atoms has the smallest atomic radius
Al
P
As
Sb
Na
Which of these ions has the largest ionic radius?
Cl^-
K^+
S^2-
Na^+
O^2-
Which of these elements has the highest first ionization energy?
Cs
Ga
K
Bi
As
Which of these elements has the electron affinity (largest positive value)?
Mg
Al
Si
K
S
Which of the following is most likely to exist as a molecular (covalent) compound?
NCl3
BaCl2
CaO
Fe2O3
CsF
A polar covalent bond would form between which one of the following pairs of atoms?
Cl-Cl
Si-Si
Ca-O
Zn-F
P-Cl
The total number of bonding electrons in a molecule of formaldehyde?
3
4
6
8
18
How many equivalent resonance structures does a nitrite ion, NO2- have?
1
2
3
4
5
Which molecule exceeds an octet o the central atom?
NH3
BH3
CO2
BrF3
SF2
Give the number of lone pairs about the central atom and the molecular geometry of SCl2
0 lone pairs, linear
1 lone pair, bent
2 lone pairs, bent
3 lone pairs, bent
3 lone pairs, linear
Use VSEPR theory to predict the molecular geometry of the PCl3 molecule:
Linear
Bent
Trigonal planar
Trigonal pyramidal
According to VSEPR theory, which of the following molecules should have a geometry that is trigonal bipyramidal?
SF4
XeF4
NF3
SF6
PF5
Predict the molecular geometry of the phosphate ion PO4^3-
Trigonal planar
Trigonal pyramidal
Tetrahedral
Trigonal bipyramidal
Octahedral
The bond angle in Cl2O is expected to be appoximately ___.
90
109.5
120
145
180
Predict the molecular geometry and polarity of the SO2 molecule:
Linear, polar
Bent, nonpolar
Linear, nonpolar
Bent, polar
None of these
Which one of the following molecules has a zero dipole moment?
HCl
CH2Cl2
SO3
SO2
NH3
What is the hybridization of the central atom in SCl2
Sp
Sp^2
Sp^3
Sp^3d
Sp^3d^2
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