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
Show solution
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
Show solution
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
Show solution
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
Show solution
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
Show solution
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
Show solution
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
Show solution
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
Show solution
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
Show solution
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
Show solution
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
Show solution
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
Show solution
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
Show solution
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
Show solution
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
Show solution
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
Show solution
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
Show solution
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
Show solution
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
Show solution
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
Show solution
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
Show solution
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
Show solution
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
Show solution
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+
Show solution
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
Show solution
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
Show solution
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
Show solution
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
Show solution
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
Show solution
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
Show solution
Solution
SF4 has four bonding pairs and one lone pair, resulting in a seesaw shape.
Correct Answer:
A
— SF4
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Showing 1 to 30 of 39 (2 Pages)
VSEPR Theory MCQ & Objective Questions
The VSEPR Theory, or Valence Shell Electron Pair Repulsion Theory, is crucial for understanding molecular shapes and bonding in chemistry. Mastering this theory not only enhances your conceptual clarity but also significantly boosts your performance in exams. Practicing VSEPR Theory MCQs and objective questions helps you identify important concepts and prepares you for various types of exam questions, ensuring you are well-equipped for success.
What You Will Practise Here
Understanding the basics of VSEPR Theory and its significance in molecular geometry.
Identifying different molecular shapes based on electron pair repulsion.
Learning key concepts such as bond angles and hybridization.
Exploring the application of VSEPR Theory in predicting molecular structures.
Reviewing important definitions and terminologies related to molecular geometry.
Analyzing diagrams that illustrate various molecular shapes.
Solving practice questions that cover common VSEPR Theory scenarios.
Exam Relevance
The VSEPR Theory is a fundamental topic in chemistry that frequently appears in CBSE, State Boards, NEET, and JEE exams. Students can expect questions related to predicting molecular shapes, identifying bond angles, and applying the theory to various compounds. Common question patterns include multiple-choice questions (MCQs) that test both conceptual understanding and application of the theory in different contexts.
Common Mistakes Students Make
Confusing the shapes of molecules with similar electron pair arrangements.
Overlooking lone pairs of electrons when determining molecular geometry.
Misinterpreting bond angles due to incorrect application of VSEPR rules.
Failing to recognize the impact of hybridization on molecular shape.
Neglecting to practice with diagrams, which can lead to misunderstandings of spatial arrangements.
FAQs
Question: What is the main purpose of VSEPR Theory?Answer: VSEPR Theory helps predict the shape of molecules based on the repulsion between electron pairs in the valence shell.
Question: How do lone pairs affect molecular geometry?Answer: Lone pairs occupy more space than bonding pairs, which can alter bond angles and overall molecular shape.
Ready to enhance your understanding of VSEPR Theory? Dive into our practice MCQs and test your knowledge to ensure you are fully prepared for your exams!
