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Q 1/50
Score 0
Which quantum number indicates the relative size of an orbital?
50
geometry
electron configuration
principal quantum number
magnetic quantum number
Q 2/50
Score 0
Which of the following combinations is allowed?
50
n=4, ℓ =1, ml=+3, ms= -1/2
n=1, ℓ =1, ml= +1, ms= -1/2
n=3, ℓ =1, ml=-3, ms= -1/2
n=2, ℓ =1, ml= -1, ms= +1/2
50 questions
Q.
Which quantum number indicates the relative size of an orbital?
1
50 sec
Q.
Which of the following combinations is allowed?
2
50 sec
Q.
What does the magnetic quantum number describe?
3
50 sec
Q.
Which element has an electronic configuration of 1s²2s²2p⁶3s²3p⁶4s²3d³?
4
50 sec
Q.
Which of the following electrons described by quantum numbers (n, l, ml, ms) has the highest energy?
5
50 sec
Q.
In the ground state of a cobalt atom there are _____ unpaired electrons and the atom is _____.
6
50 sec
Q.
Determine the electronic configuration of Cl with 17 electrons using spdf notation.
7
50 sec
Q.
Determine the orbital notation of Chlorine
8
50 sec
Q.
Which of the following statements about Aufbau Principle is TRUE?
9
50 sec
Q.
Which of the following is a valid orbital diagram?
10
50 sec
Q.
What is the CORRECT orbital diagram of ₅B?
11
50 sec
Q.
This is a Lewis Dot structure of:
12
50 sec
Q.
In drawing a Lewis structure, the central atom is the
13
50 sec
Q.
According to the Octet Rule, atoms of elements react with each other to attain ____electrons in their outermost energy level or shell.
14
50 sec
Q.
The valence electrons of representative elements are
15
50 sec
Q.
How do you find the number of valence electrons in an atom?
16
50 sec
Q.
It is used to describe elements that are covalently bonded and to distinguish the compounds from ionic compounds.
17
50 sec
Q.
How many electrons needed by Phosphorus to complete the Octet Rule?
18
50 sec
Q.
In the ground state, which of the following has a filled valence electron?
19
50 sec
Q.
Which of the following bonds of elements follows the octet rule?
20
50 sec
Q.
Which of the following covalent molecules is the best illustration of typical properties of substances with simple molecular covalent structures?
21
50 sec
Q.
What is the chemical name for the compound with the formula Na₂S?
22
50 sec
Q.
Which of the following has the chemical formula of carbon tetrafluoride?
23
50 sec
Q.
What is the formula of tetraphosphorus heptaflouride?
24
50 sec
Q.
How many lone pair(s) electrons are there in the central atom of H₂O?
25
50 sec
Q.
A covalent molecule has three bonding electron pairs and one lone pair. The molecule has a general formula of AX₃E. Which of the following choices is the correct shape of the molecule?
26
50 sec
Q.
Which of the following will be the solvent if a nonpolar substance dissolves in an unknown liquid?
27
50 sec
Q.
Which of the following is TRUE about H₂O?
28
50 sec
Q.
Which of the following is TRUE about boiling point of polar molecules?
29
50 sec
Q.
The number of lone pairs of electrons around the central oxygen atom in In the Lewis structure of the OF₂ molecule is:
30
50 sec
Q.
Which of the following molecules has a dipole moment?
31
50 sec
Q.
VSEPR theory specifies “valence shell” electrons. Which of the following are the most critical electrons for determining molecular shape? I. Valence electrons are the outermost electrons of an atom and the first interact with other atoms and be involved in bonding.
II. They make up the molecular shape and lone pairs in the Lewis structure.
III. They make up the bonds and lone pairs in the Lewis structure.
32
50 sec
Q.
Which element is present in all organic compounds?
33
50 sec
Q.
A hydrocarbon molecule is saturated if the molecule contains ___________
34
50 sec
Q.
A functional group with a carbonyl group functionality is ___________.
35
50 sec
Q.
What is a functional group?
36
50 sec
Q.
Classify the compound based on the functional group present.
37
50 sec
Q.
The general formula for amines is ____________.
38
50 sec
Q.
Ethanol is an example of what functional group?
39
50 sec
Q.
Methanoic acid is an example of ___________________.
40
50 sec
Q.
These hydrocarbons contain at least one carbon-carbon triple bond, hence unsaturated.
41
50 sec
Q.
What compounds are used in the production of perfumes and as flavoring agents?
42
50 sec
Q.
Identify the functional group present in this compound.
43
50 sec
Q.
Which of the following compounds below is an alcohol?
44
120 sec
Q.
An alkyl group is formed by removing one hydrogen from the alkane chain. Which of the following is NOT an alkyl group?
45
120 sec
Q.
For numbers 46-50. Choose the correct nomenclature for the following organic compounds.
46
120 sec
Q.
Choose the correct nomenclature for the given organic compounds.
47
120 sec
Q.
Choose the correct nomenclature for the given organic compounds.
48
120 sec
Q.
Choose the correct nomenclature for the given organic compounds.
49
120 sec
Q.
Choose the correct nomenclature for the given organic compounds.
