Q. What is the reduction potential of the half-reaction 2H⁺ + 2e⁻ → H₂?
A.
0.00 V
B.
0.34 V
C.
0.76 V
D.
1.23 V
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Solution
The standard reduction potential for 2H⁺ + 2e⁻ → H₂ is 0.00 V.
Correct Answer:
D
— 1.23 V
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Q. What is the relationship between Gibbs free energy (ΔG) and cell potential (E) in electrochemistry?
A.
ΔG = -nFE
B.
ΔG = nFE
C.
ΔG = -E/nF
D.
ΔG = E/nF
Show solution
Solution
The relationship is ΔG = -nFE, where n is the number of moles of electrons transferred.
Correct Answer:
A
— ΔG = -nFE
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Q. What is the relationship between the rate of reaction and temperature according to the Arrhenius equation? (2022)
A.
Inversely proportional
B.
Directly proportional
C.
Exponential
D.
Linear
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Solution
According to the Arrhenius equation, the rate of reaction increases exponentially with temperature.
Correct Answer:
C
— Exponential
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Q. What is the shape of a molecule with a tetrahedral geometry? (2023)
A.
Linear
B.
Trigonal planar
C.
Tetrahedral
D.
Octahedral
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Solution
A tetrahedral geometry has a central atom bonded to four other atoms, forming a shape like a pyramid with a triangular base.
Correct Answer:
C
— Tetrahedral
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Q. What is the shape of the methane (CH4) molecule? (2023)
A.
Linear
B.
Trigonal planar
C.
Tetrahedral
D.
Octahedral
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Solution
Methane (CH4) has a tetrahedral shape due to the four pairs of bonding electrons around the central carbon atom.
Correct Answer:
C
— Tetrahedral
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Q. What is the shape of the s orbital? (2021) 2021
A.
Spherical
B.
Dumbbell
C.
Double dumbbell
D.
Linear
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Solution
The s orbital has a spherical shape.
Correct Answer:
A
— Spherical
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Q. What is the simplest ketone?
A.
Acetaldehyde
B.
Acetone
C.
Butanone
D.
Propionaldehyde
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Solution
Acetone (CH3COCH3) is the simplest ketone.
Correct Answer:
B
— Acetone
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Q. What is the specific heat at constant volume (Cv) for a monatomic ideal gas? (2019)
A.
3R/2
B.
5R/2
C.
R
D.
2R
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Solution
For a monatomic ideal gas, the specific heat at constant volume (Cv) is 3R/2.
Correct Answer:
A
— 3R/2
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Q. What is the specific heat capacity of water at constant pressure (C_p)? (2020)
A.
4.18 J/g°C
B.
2.09 J/g°C
C.
1.00 J/g°C
D.
3.00 J/g°C
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Solution
The specific heat capacity of water at constant pressure is approximately 4.18 J/g°C.
Correct Answer:
A
— 4.18 J/g°C
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Q. What is the specific heat capacity of water? (2021) 2021
A.
1 J/g°C
B.
4.18 J/g°C
C.
2 J/g°C
D.
0.9 J/g°C
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Solution
The specific heat capacity of water is approximately 4.18 J/g°C.
Correct Answer:
B
— 4.18 J/g°C
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Q. What is the standard electrode potential of the half-reaction Zn²⁺ + 2e⁻ → Zn?
A.
0.76 V
B.
0.34 V
C.
-0.76 V
D.
-0.34 V
Show solution
Solution
The standard electrode potential for Zn²⁺/Zn is -0.76 V.
Correct Answer:
C
— -0.76 V
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Q. What is the standard electrode potential of the hydrogen electrode? (2023) 2023
A.
0 V
B.
1 V
C.
2 V
D.
0.5 V
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Solution
The standard electrode potential of the hydrogen electrode is defined as 0 V.
Correct Answer:
A
— 0 V
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Q. What is the structure of a nucleotide?
A.
Sugar, phosphate, and base
B.
Amino group, carboxyl group, and side chain
C.
Glycerol and fatty acids
D.
Monosaccharides
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Solution
A nucleotide consists of a sugar, a phosphate group, and a nitrogenous base.
Correct Answer:
A
— Sugar, phosphate, and base
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Q. What is the symbol for Gold?
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Solution
The symbol for Gold is Au.
Correct Answer:
A
— Au
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Q. What is the term for a solution that contains the maximum amount of solute that can dissolve at a given temperature? (2022)
A.
Unsaturated solution
B.
Saturated solution
C.
Supersaturated solution
D.
Concentrated solution
Show solution
Solution
A saturated solution is one that contains the maximum amount of solute that can dissolve at a specific temperature.
Correct Answer:
B
— Saturated solution
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Q. What is the term for the energy required to change a substance from solid to liquid?
A.
Heat of fusion
B.
Heat of vaporization
C.
Sublimation energy
D.
Latent heat
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Solution
The heat of fusion is the energy required to change a substance from solid to liquid.
Correct Answer:
A
— Heat of fusion
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Q. What is the term for the energy required to separate an adsorbate from an adsorbent? (2023)
A.
Adsorption energy
B.
Desorption energy
C.
Activation energy
D.
Bond energy
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Solution
Desorption energy is the energy required to separate an adsorbate from an adsorbent.
Correct Answer:
B
— Desorption energy
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Q. What is the term for the maximum amount of solute that can be adsorbed on a surface? (2021)
A.
Saturation point
B.
Adsorption capacity
C.
Equilibrium constant
D.
Surface tension
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Solution
The maximum amount of solute that can be adsorbed on a surface is referred to as the adsorption capacity.
Correct Answer:
B
— Adsorption capacity
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Q. What is the term for the process where a solid adsorbs a liquid or gas? (2022)
A.
Absorption
B.
Adsorption
C.
Desorption
D.
Sorption
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Solution
Adsorption is the process where a solid attracts and holds molecules of a liquid or gas on its surface.
Correct Answer:
B
— Adsorption
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Q. What is the term used for the maximum amount of solute that can be adsorbed on a surface? (2023)
A.
Saturation point
B.
Adsorption isotherm
C.
Langmuir constant
D.
Adsorption capacity
Show solution
Solution
The term 'adsorption capacity' refers to the maximum amount of solute that can be adsorbed on a surface under specific conditions.
Correct Answer:
D
— Adsorption capacity
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Q. What is the total number of moles in 2 liters of a 3 M solution? (2022)
A.
3 moles
B.
6 moles
C.
1.5 moles
D.
4 moles
Show solution
Solution
Moles = Molarity * Volume = 3 mol/L * 2 L = 6 moles.
Correct Answer:
B
— 6 moles
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Q. What is the Tyndall effect? (2023)
A.
Scattering of light by particles
B.
Absorption of light by particles
C.
Reflection of light by particles
D.
Refraction of light by particles
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Solution
The Tyndall effect is the scattering of light by colloidal particles, making the path of the light visible.
Correct Answer:
A
— Scattering of light by particles
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Q. What is the unit of electrical conductivity? (2023)
A.
Ohm
B.
Siemens
C.
Volt
D.
Ampere
Show solution
Solution
The unit of electrical conductivity is Siemens (S).
Correct Answer:
B
— Siemens
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Q. What is the unit of the rate constant for a first-order reaction? (2023)
A.
M/s
B.
M²/s
C.
s⁻¹
D.
M⁻¹s⁻¹
Show solution
Solution
The unit of the rate constant for a first-order reaction is s⁻¹.
Correct Answer:
C
— s⁻¹
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Q. What is the valency of Magnesium? (2015)
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Solution
Magnesium has a valency of 2, as it can lose two electrons.
Correct Answer:
B
— 2
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Q. What is the valency of Oxygen? (2021)
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Solution
Oxygen has a valency of 2, as it needs two electrons to complete its outer shell.
Correct Answer:
B
— 2
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Q. What is the value of the azimuthal quantum number (l) for a d orbital? (2021) 2021
Show solution
Solution
The azimuthal quantum number l for d orbitals is 2.
Correct Answer:
C
— 2
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Q. What is the value of the azimuthal quantum number (l) for a p-orbital? (2015)
Show solution
Solution
The azimuthal quantum number (l) for a p-orbital is 1.
Correct Answer:
B
— 1
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Q. What is the volume of 0.2 M NaOH required to neutralize 0.1 M HCl in 250 mL? (2020)
A.
125 mL
B.
250 mL
C.
500 mL
D.
100 mL
Show solution
Solution
Using the formula M1V1 = M2V2, (0.1 M)(0.25 L) = (0.2 M)(V2). V2 = 0.125 L = 125 mL.
Correct Answer:
A
— 125 mL
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Q. What is the volume of 1 M HCl solution needed to obtain 0.5 moles of HCl? (2022)
A.
0.5 L
B.
1 L
C.
2 L
D.
0.25 L
Show solution
Solution
Volume = moles / molarity = 0.5 moles / 1 M = 0.5 L.
Correct Answer:
A
— 0.5 L
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Chemistry (MHT-CET) MCQ & Objective Questions
Chemistry is a crucial subject for students preparing for the MHT-CET exam, as it forms a significant part of the syllabus. Mastering Chemistry through practice questions and MCQs not only enhances your understanding but also boosts your confidence for the exam. Engaging with objective questions helps identify important concepts and improves your problem-solving skills, making it easier to score better in your exams.
What You Will Practise Here
Basic concepts of Chemistry: Atoms, Molecules, and Stoichiometry
Periodic Table: Trends and properties of elements
Chemical Bonding: Types of bonds and molecular geometry
Thermodynamics: Laws and applications in chemical reactions
Equilibrium: Concepts of chemical and ionic equilibrium
Organic Chemistry: Functional groups and reaction mechanisms
Environmental Chemistry: Impact of chemicals on the environment
Exam Relevance
Chemistry is a vital component in various examinations such as CBSE, State Boards, NEET, and JEE. In these exams, questions often focus on conceptual understanding and application of theories. Common patterns include multiple-choice questions that test your knowledge of definitions, formulas, and the ability to solve numerical problems. Familiarity with these patterns through practice can significantly enhance your performance.
Common Mistakes Students Make
Misunderstanding the periodic trends and their implications
Confusing different types of chemical bonds and their properties
Overlooking the significance of units in thermodynamic calculations
Neglecting to balance chemical equations correctly
Struggling with organic reaction mechanisms due to lack of practice
FAQs
Question: What are the best ways to prepare for Chemistry (MHT-CET) MCQs?Answer: Regular practice of MCQs, understanding key concepts, and revising important formulas are essential for effective preparation.
Question: How can I improve my speed in solving Chemistry objective questions?Answer: Time yourself while practicing and focus on solving questions efficiently to improve your speed.
Don't wait any longer! Start solving practice MCQs today to test your understanding and solidify your knowledge in Chemistry. Your success in the MHT-CET exam is just a few practice questions away!
