Q. According to VSEPR theory, what is the shape of the molecule with the formula AX2E2?
-
A.
Linear
-
B.
Bent
-
C.
Trigonal planar
-
D.
Tetrahedral
Solution
AX2E2 indicates two bonding pairs and two lone pairs, resulting in a bent shape.
Correct Answer: B — Bent
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Q. What is the bond angle in a trigonal planar molecule?
-
A.
120 degrees
-
B.
109.5 degrees
-
C.
180 degrees
-
D.
90 degrees
Solution
In a trigonal planar geometry, the bond angles are 120 degrees.
Correct Answer: A — 120 degrees
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Q. What is the bond angle in a water molecule (H2O) according to VSEPR theory?
-
A.
120 degrees
-
B.
109.5 degrees
-
C.
104.5 degrees
-
D.
90 degrees
Solution
The bond angle in H2O is approximately 104.5 degrees due to the two lone pairs on oxygen.
Correct Answer: C — 104.5 degrees
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Q. What is the bond angle in a water molecule (H2O)?
-
A.
120 degrees
-
B.
109.5 degrees
-
C.
104.5 degrees
-
D.
180 degrees
Solution
The bond angle in H2O is approximately 104.5 degrees due to the two lone pairs on oxygen.
Correct Answer: C — 104.5 degrees
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Q. What is the electron pair geometry of NH3?
-
A.
Tetrahedral
-
B.
Trigonal planar
-
C.
Octahedral
-
D.
Linear
Solution
NH3 has four electron pairs (three bonding pairs and one lone pair), giving it a tetrahedral electron pair geometry.
Correct Answer: A — Tetrahedral
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Q. What is the electron pair geometry of SF6?
-
A.
Tetrahedral
-
B.
Trigonal bipyramidal
-
C.
Octahedral
-
D.
Square planar
Solution
SF6 has six bonding pairs and no lone pairs, resulting in an octahedral electron pair geometry.
Correct Answer: C — Octahedral
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Q. What is the hybridization of a molecule with a tetrahedral shape?
-
A.
sp
-
B.
sp2
-
C.
sp3
-
D.
sp3d
Solution
A tetrahedral shape corresponds to sp3 hybridization.
Correct Answer: C — sp3
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Q. What is the hybridization of the central atom in a molecule with a tetrahedral shape?
-
A.
sp
-
B.
sp2
-
C.
sp3
-
D.
sp3d
Solution
A tetrahedral shape corresponds to sp3 hybridization.
Correct Answer: C — sp3
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Q. What is the hybridization of the central atom in NH3?
-
A.
sp
-
B.
sp2
-
C.
sp3
-
D.
sp3d
Solution
The central nitrogen atom in NH3 is sp3 hybridized due to three bonding pairs and one lone pair.
Correct Answer: C — sp3
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Q. What is the molecular geometry of BF3 according to VSEPR theory?
-
A.
Trigonal planar
-
B.
Tetrahedral
-
C.
Octahedral
-
D.
Linear
Solution
BF3 has three bonding pairs and no lone pairs, resulting in a trigonal planar geometry.
Correct Answer: A — Trigonal planar
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Q. What is the molecular geometry of CH4 according to VSEPR theory?
-
A.
Linear
-
B.
Trigonal planar
-
C.
Tetrahedral
-
D.
Octahedral
Solution
According to VSEPR theory, CH4 has four bonding pairs and no lone pairs, resulting in a tetrahedral geometry.
Correct Answer: C — Tetrahedral
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Q. What is the molecular geometry of NH3 according to VSEPR theory?
-
A.
Trigonal planar
-
B.
Tetrahedral
-
C.
Bent
-
D.
Trigonal pyramidal
Solution
NH3 has three bonding pairs and one lone pair, resulting in a trigonal pyramidal geometry.
Correct Answer: D — Trigonal pyramidal
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Q. What is the molecular geometry of SF4?
-
A.
Tetrahedral
-
B.
Trigonal bipyramidal
-
C.
Seesaw
-
D.
Square planar
Solution
SF4 has four bonding pairs and one lone pair, resulting in a seesaw molecular geometry.
Correct Answer: C — Seesaw
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Q. What is the molecular geometry of SO2?
-
A.
Linear
-
B.
Trigonal planar
-
C.
Bent
-
D.
Tetrahedral
Solution
SO2 has two bonding pairs and one lone pair, resulting in a bent molecular geometry.
Correct Answer: C — Bent
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Q. What is the molecular shape of a molecule with the formula AX3E?
-
A.
Trigonal planar
-
B.
Tetrahedral
-
C.
Trigonal pyramidal
-
D.
Bent
Solution
AX3E indicates three bonding pairs and one lone pair, resulting in a trigonal pyramidal shape.
Correct Answer: C — Trigonal pyramidal
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Q. What is the molecular shape of BF3 according to VSEPR theory?
-
A.
Bent
-
B.
Trigonal planar
-
C.
Tetrahedral
-
D.
Octahedral
Solution
BF3 has three bonding pairs and no lone pairs, resulting in a trigonal planar shape.
Correct Answer: B — Trigonal planar
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Q. What is the molecular shape of NH3 according to VSEPR theory?
-
A.
Linear
-
B.
Trigonal planar
-
C.
Tetrahedral
-
D.
Trigonal pyramidal
Solution
NH3 has three bonding pairs and one lone pair, resulting in a trigonal pyramidal shape.
Correct Answer: D — Trigonal pyramidal
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Q. What is the shape of a molecule with the formula AX3E?
-
A.
Trigonal planar
-
B.
Tetrahedral
-
C.
Trigonal pyramidal
-
D.
Bent
Solution
AX3E indicates three bonding pairs and one lone pair, resulting in a trigonal pyramidal shape.
Correct Answer: C — Trigonal pyramidal
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Q. What is the shape of the molecule SF6 according to VSEPR theory?
-
A.
Square planar
-
B.
Octahedral
-
C.
Trigonal bipyramidal
-
D.
Tetrahedral
Solution
SF6 has six bonding pairs and no lone pairs, leading to an octahedral shape.
Correct Answer: B — Octahedral
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Q. What is the shape of the molecule with the formula AX2E2 according to VSEPR theory?
-
A.
Linear
-
B.
Bent
-
C.
Trigonal planar
-
D.
Tetrahedral
Solution
AX2E2 indicates two bonding pairs and two lone pairs, resulting in a bent shape.
Correct Answer: B — Bent
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Q. What is the shape of the molecule with the formula AX3E?
-
A.
Tetrahedral
-
B.
Trigonal pyramidal
-
C.
Trigonal planar
-
D.
Bent
Solution
AX3E indicates three bonding pairs and one lone pair, resulting in a trigonal pyramidal shape.
Correct Answer: B — Trigonal pyramidal
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Q. What is the shape of the molecule with the formula AX4?
-
A.
Tetrahedral
-
B.
Square planar
-
C.
Trigonal bipyramidal
-
D.
Octahedral
Solution
AX4 indicates four bonding pairs and no lone pairs, resulting in a tetrahedral shape.
Correct Answer: A — Tetrahedral
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Q. Which molecule has a bent shape due to lone pairs?
-
A.
CO2
-
B.
O3
-
C.
CH4
-
D.
BF3
Solution
O3 (ozone) has a bent shape due to the presence of a lone pair on the central oxygen atom.
Correct Answer: B — O3
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Q. Which molecule has a square planar geometry?
-
A.
XeF4
-
B.
SF4
-
C.
ClF3
-
D.
NH4+
Solution
XeF4 has four bonding pairs and two lone pairs, leading to a square planar geometry.
Correct Answer: A — XeF4
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Q. Which of the following has a bent molecular geometry?
-
A.
CO2
-
B.
H2O
-
C.
CH4
-
D.
BF3
Solution
H2O has two lone pairs and two bonding pairs, resulting in a bent geometry.
Correct Answer: B — H2O
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Q. Which of the following has a linear molecular geometry?
-
A.
BeCl2
-
B.
NH3
-
C.
H2O
-
D.
CH4
Solution
BeCl2 has two bonding pairs and no lone pairs, resulting in a linear geometry.
Correct Answer: A — BeCl2
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Q. Which of the following has a molecular geometry that is not symmetrical?
-
A.
CCl4
-
B.
NH3
-
C.
CO2
-
D.
BF3
Solution
NH3 has a trigonal pyramidal shape, which is not symmetrical due to the lone pair.
Correct Answer: B — NH3
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Q. Which of the following has a pyramidal shape?
-
A.
CH4
-
B.
H2O
-
C.
NH3
-
D.
CO2
Solution
NH3 has three bonding pairs and one lone pair, resulting in a trigonal pyramidal shape.
Correct Answer: C — NH3
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Q. Which of the following has a seesaw molecular geometry?
-
A.
SF4
-
B.
ClF3
-
C.
NH4+
-
D.
XeF2
Solution
SF4 has four bonding pairs and one lone pair, resulting in a seesaw molecular geometry.
Correct Answer: A — SF4
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Q. Which of the following has a seesaw shape according to VSEPR theory?
-
A.
SF4
-
B.
PCl5
-
C.
XeF2
-
D.
NH3
Solution
SF4 has four bonding pairs and one lone pair, resulting in a seesaw shape.
Correct Answer: A — SF4
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