Q. What is the bulk modulus of a material if a pressure increase of 1000 kPa causes a volume decrease of 0.01 m³ in a 1 m³ sample? (2022)
A.
10000 kPa
B.
1000 kPa
C.
100 kPa
D.
100 kPa
Show solution
Solution
Bulk modulus (K) = -ΔP / (ΔV/V) = 1000 kPa / (0.01 m³ / 1 m³) = 100000 kPa = 10000 kPa.
Correct Answer:
A
— 10000 kPa
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Q. What is the bulk modulus of a material if a pressure increase of 1000 kPa results in a volume decrease of 0.01 m³ for a volume of 1 m³? (2022)
A.
10000 kPa
B.
1000 kPa
C.
100 kPa
D.
100000 kPa
Show solution
Solution
Bulk modulus (K) = -ΔP / (ΔV/V) = 1000 kPa / (0.01 m³ / 1 m³) = 100000 kPa.
Correct Answer:
A
— 10000 kPa
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Q. What is the bulk modulus of a material if a pressure increase of 1000 kPa results in a volume decrease of 0.5%? (2022)
A.
200000 kPa
B.
500000 kPa
C.
1000000 kPa
D.
250000 kPa
Show solution
Solution
Bulk modulus (K) = -ΔP / (ΔV/V) = 1000 kPa / 0.005 = 200000 kPa.
Correct Answer:
B
— 500000 kPa
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Q. What is the bulk modulus of a material if a pressure increase of 50 MPa results in a volume decrease of 0.002 m³ for a volume of 1 m³? (2022)
A.
25 GPa
B.
50 GPa
C.
100 GPa
D.
200 GPa
Show solution
Solution
Bulk modulus (K) = -ΔP / (ΔV/V) = -50 MPa / (-0.002 m³ / 1 m³) = 25000 MPa = 25 GPa.
Correct Answer:
B
— 50 GPa
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Q. What is the bulk modulus of a material if a pressure increase of 50 MPa results in a volume decrease of 0.02 m³ for a volume of 1 m³? (2022)
A.
2500 MPa
B.
500 MPa
C.
1000 MPa
D.
2000 MPa
Show solution
Solution
Bulk modulus (K) = -ΔP / (ΔV/V) = 50 MPa / (0.02 m³ / 1 m³) = 2500 MPa.
Correct Answer:
A
— 2500 MPa
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Q. What is the capacitance of a capacitor if it stores 6μC of charge at a potential difference of 3V? (2022)
A.
2μF
B.
3μF
C.
4μF
D.
5μF
Show solution
Solution
Using the formula C = Q/V, we have C = 6μC / 3V = 2μF.
Correct Answer:
A
— 2μF
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Q. What is the capacitance of a spherical capacitor with inner radius a and outer radius b? (2023)
A.
4πε₀ab/(b-a)
B.
4πε₀/(1/a - 1/b)
C.
4πε₀/(a+b)
D.
4πε₀/(b-a)
Show solution
Solution
The capacitance of a spherical capacitor is given by C = 4πε₀ab/(b-a).
Correct Answer:
A
— 4πε₀ab/(b-a)
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Q. What is the change in internal energy (ΔU) for an ideal gas during an isothermal process? (2021)
A.
ΔU = 0
B.
ΔU = nRT
C.
ΔU = -nRT
D.
ΔU = PV
Show solution
Solution
In an isothermal process for an ideal gas, the temperature remains constant, which means the internal energy does not change. Therefore, ΔU = 0.
Correct Answer:
A
— ΔU = 0
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Q. What is the change in internal energy (ΔU) for an ideal gas undergoing an isothermal process? (2021)
A.
ΔU = 0
B.
ΔU = Q
C.
ΔU = W
D.
ΔU = Q + W
Show solution
Solution
In an isothermal process for an ideal gas, the temperature remains constant, which means the internal energy does not change. Therefore, ΔU = 0.
Correct Answer:
A
— ΔU = 0
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Q. What is the change in internal energy (ΔU) for an isothermal process for an ideal gas? (2021)
A.
ΔU = 0
B.
ΔU = nRT
C.
ΔU = -nRT
D.
ΔU = PV
Show solution
Solution
In an isothermal process for an ideal gas, the temperature remains constant, which means the internal energy does not change. Therefore, ΔU = 0.
Correct Answer:
A
— ΔU = 0
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Q. What is the change in internal energy (ΔU) for an isothermal process of an ideal gas? (2021)
A.
ΔU = 0
B.
ΔU = nRT
C.
ΔU = -nRT
D.
ΔU = PV
Show solution
Solution
In an isothermal process for an ideal gas, the temperature remains constant, which means the internal energy does not change. Therefore, ΔU = 0.
Correct Answer:
A
— ΔU = 0
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Q. What is the change in oxidation state of carbon in the reaction C6H12O6 → 2C2H5OH? (2023)
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Solution
In the conversion of glucose to ethanol, the oxidation state of carbon decreases, indicating a reduction of -1.
Correct Answer:
C
— -1
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Q. What is the change in oxidation state of manganese in the reaction MnO4- + 8H+ + 5e- → Mn2+ + 4H2O? (2023)
A.
+7 to +2
B.
+2 to +7
C.
0 to +2
D.
+4 to +2
Show solution
Solution
Manganese changes from +7 in MnO4- to +2 in Mn2+, indicating a reduction.
Correct Answer:
A
— +7 to +2
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Q. What is the charge of a neutron? (2022)
A.
Positive
B.
Negative
C.
Neutral
D.
Depends on the isotope
Show solution
Solution
A neutron has no charge; it is electrically neutral.
Correct Answer:
C
— Neutral
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Q. What is the charge of a proton? (2023)
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Solution
A proton carries a positive charge of +1 elementary charge.
Correct Answer:
C
— +1
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Q. What is the charge of one coulomb equivalent to in terms of electric current and time? (2022)
A.
1 A for 1 s
B.
1 A for 2 s
C.
2 A for 1 s
D.
0.5 A for 1 s
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Solution
1 coulomb is the charge that passes through a conductor when a current of 1 ampere flows for 1 second.
Correct Answer:
A
— 1 A for 1 s
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Q. What is the charge of one coulomb equivalent to in terms of electrons? (2022)
A.
6.25 x 10^18 electrons
B.
1.6 x 10^-19 electrons
C.
3.2 x 10^-19 electrons
D.
1.0 x 10^18 electrons
Show solution
Solution
One coulomb is equivalent to approximately 6.25 x 10^18 electrons.
Correct Answer:
A
— 6.25 x 10^18 electrons
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Q. What is the charge of one coulomb in terms of the number of electrons? (2023)
A.
6.25 x 10^18 electrons
B.
1.6 x 10^-19 electrons
C.
3.2 x 10^-19 electrons
D.
1.0 x 10^18 electrons
Show solution
Solution
One coulomb is equivalent to approximately 6.25 x 10^18 electrons.
Correct Answer:
A
— 6.25 x 10^18 electrons
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Q. What is the chemical formula for the compound formed between strontium and chlorine? (2019)
A.
SrCl
B.
SrCl2
C.
Sr2Cl
D.
Sr2Cl3
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Solution
Strontium forms a compound with chlorine as SrCl2, where strontium has a +2 charge and chlorine has a -1 charge.
Correct Answer:
B
— SrCl2
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Q. What is the color of potassium permanganate (KMnO4)? (2021)
A.
Colorless
B.
Green
C.
Purple
D.
Yellow
Show solution
Solution
Potassium permanganate (KMnO4) is known for its deep purple color.
Correct Answer:
C
— Purple
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Q. What is the color of the complex ion [Cu(NH3)4]2+? (2021)
A.
Blue
B.
Green
C.
Yellow
D.
Red
Show solution
Solution
[Cu(NH3)4]2+ is known to exhibit a blue color due to d-d transitions.
Correct Answer:
A
— Blue
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Q. What is the color of the flame produced by burning strontium salts? (2023)
A.
Red
B.
Green
C.
Blue
D.
Yellow
Show solution
Solution
Strontium salts produce a red flame when burned.
Correct Answer:
A
— Red
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Q. What is the color of the flame produced by lithium salts? (2019)
A.
Red
B.
Green
C.
Blue
D.
Yellow
Show solution
Solution
Lithium salts produce a red flame when burned.
Correct Answer:
A
— Red
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Q. What is the color of the solution of potassium dichromate (K2Cr2O7)? (2023)
A.
Yellow
B.
Green
C.
Blue
D.
Red
Show solution
Solution
Potassium dichromate (K2Cr2O7) gives a yellow solution.
Correct Answer:
A
— Yellow
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Q. What is the common oxidation state of alkaline earth metals? (2019)
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Solution
Alkaline earth metals typically exhibit a common oxidation state of +2.
Correct Answer:
B
— +2
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Q. What is the common oxidation state of aluminum in its compounds? (2020)
Show solution
Solution
Aluminum commonly exhibits an oxidation state of +3 in its compounds.
Correct Answer:
C
— +3
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Q. What is the common oxidation state of chromium in CrO3? (2023)
Show solution
Solution
In CrO3, chromium (Cr) has an oxidation state of +6.
Correct Answer:
C
— +6
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Q. What is the common oxidation state of iron in Fe2O3? (2019)
Show solution
Solution
In Fe2O3, iron has a common oxidation state of +3.
Correct Answer:
C
— +3
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Q. What is the common oxidation state of iron in FeCl3? (2023)
Show solution
Solution
In FeCl3, iron (Fe) has an oxidation state of +3.
Correct Answer:
B
— +3
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Q. What is the common oxidation state of sulfur in sulfuric acid (H2SO4)? (2022)
Show solution
Solution
In sulfuric acid, sulfur has an oxidation state of +6.
Correct Answer:
C
— +6
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Showing 781 to 810 of 2984 (100 Pages)
NEET MCQ & Objective Questions
The National Eligibility cum Entrance Test (NEET) is a crucial examination for aspiring medical students in India. Scoring well in NEET can open doors to prestigious medical colleges, making it essential for students to prepare effectively. Practicing NEET MCQs and objective questions not only enhances understanding but also boosts confidence, ensuring you are well-prepared for the exam. Engaging with practice questions helps identify important topics and improves your ability to tackle various question formats.
What You Will Practise Here
Human Anatomy and Physiology
Biochemistry and Molecular Biology
Genetics and Evolution
Plant and Animal Physiology
Ecology and Environment
Physics Concepts Relevant to Biology
Important NEET questions on Chemical Bonding and Reactions
Exam Relevance
NEET is aligned with the syllabus of CBSE and various State Boards, ensuring that the topics covered are relevant for both school exams and competitive tests like JEE. Common question patterns include multiple-choice questions that assess conceptual understanding and application of knowledge. By focusing on NEET objective questions, students can familiarize themselves with the exam format and improve their time management skills during the actual test.
Common Mistakes Students Make
Misinterpreting questions due to lack of careful reading.
Overlooking the importance of diagrams and visual aids in biology.
Neglecting to review basic concepts that are foundational for advanced topics.
Confusing similar terms and definitions, especially in biochemistry.
FAQs
Question: How can I improve my NEET MCQ solving skills?Answer: Regular practice with NEET MCQ questions and reviewing explanations for both correct and incorrect answers can significantly enhance your skills.
Question: Are there specific topics I should focus on for NEET preparation?Answer: Yes, focus on high-weightage topics like Human Physiology, Genetics, and Ecology, as they frequently appear in exams.
Start your journey towards success by solving NEET practice MCQs today! Test your understanding, identify your strengths and weaknesses, and prepare effectively for your upcoming exams.
