What theory is used to determine the molecular geometry of HCN?

Molecular Geometry and VSEPR Theory

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Chemistry
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9th - 10th Grade
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Hard

Lucas Foster
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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Molecular Orbital Theory
Quantum Theory
VSEPR Theory
Lewis Theory
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the VSEPR theory, how do atoms arrange themselves?
In a zigzag pattern
In a circular pattern
As close as possible
As far apart as possible
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the molecular geometry of HCN?
Tetrahedral
Linear
Trigonal Planar
Bent
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the 'X' represent in AXN notation for HCN?
Central atom
Number of lone pairs
Number of atoms attached to the central atom
Bond angles
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many atoms are attached to the central carbon in HCN?
Two
One
Four
Three
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is true about the electrons around the carbon atom in HCN?
They are in a non-bonding state
They are free electrons
They form lone pairs
They are all involved in chemical bonds
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the bond angle in a linear molecular geometry like HCN?
90°
120°
180°
109.5°
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of the bond angle in determining molecular geometry?
It changes the molecular weight
It confirms the molecular shape
It affects the molecule's polarity
It determines the color of the molecule
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