Major Competitive Exams
Q. Which of the following is not a f-block element?
A.
Uranium
B.
Plutonium
C.
Zirconium
D.
Neptunium
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Solution
Zirconium (Zr) is a d-block element, while Uranium, Plutonium, and Neptunium are f-block elements.
Correct Answer: C — Zirconium
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Q. Which of the following is NOT a factor affecting solubility?
A.
Temperature
B.
Pressure
C.
Nature of solute and solvent
D.
Color of solute
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Solution
Color of solute does not affect its solubility; solubility is influenced by temperature, pressure, and the nature of solute and solvent.
Correct Answer: D — Color of solute
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Q. Which of the following is NOT a factor affecting the solubility of a solute in a solvent?
A.
Temperature
B.
Pressure
C.
Nature of solute and solvent
D.
Color of solute
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Solution
The color of the solute does not affect its solubility; solubility is influenced by temperature, pressure, and the nature of the solute and solvent.
Correct Answer: D — Color of solute
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Q. Which of the following is NOT a family of curves?
A.
y = kx^2
B.
y = ksin(x)
C.
y = kx
D.
y = k/x
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Solution
y = kx represents a family of straight lines, but it is not a family of curves.
Correct Answer: C — y = kx
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Q. Which of the following is NOT a function of carbohydrates?
A.
Energy storage
B.
Structural support
C.
Hormone production
D.
Cell recognition
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Solution
Carbohydrates are primarily involved in energy storage, structural support, and cell recognition, but they do not produce hormones.
Correct Answer: C — Hormone production
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Q. Which of the following is NOT a function of lipids?
A.
Energy storage
B.
Insulation
C.
Hormone production
D.
Genetic information storage
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Solution
Lipids do not store genetic information; that function is performed by nucleic acids.
Correct Answer: D — Genetic information storage
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Q. Which of the following is NOT a function of proteins?
A.
Enzymatic activity
B.
Energy storage
C.
Transport of molecules
D.
Cell signaling
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Solution
While proteins can be involved in energy metabolism, they are not primarily used for energy storage; carbohydrates and fats serve that purpose.
Correct Answer: B — Energy storage
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Q. Which of the following is not a fundamental force of nature?
A.
Gravitational force
B.
Electromagnetic force
C.
Nuclear force
D.
Frictional force
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Solution
Frictional force is not a fundamental force of nature; it is a macroscopic force resulting from the interaction of surfaces.
Correct Answer: D — Frictional force
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Q. Which of the following is NOT a fundamental quantity?
A.
Length
B.
Mass
C.
Time
D.
Force
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Solution
Force is not a fundamental quantity; it is a derived quantity based on mass, length, and time.
Correct Answer: D — Force
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Q. Which of the following is not a fundamental unit?
A.
Meter
B.
Kilogram
C.
Second
D.
Joule
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Solution
Joule is not a fundamental unit; it is a derived unit.
Correct Answer: D — Joule
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Q. Which of the following is NOT a gas law?
A.
Boyle's Law
B.
Charles's Law
C.
Avogadro's Law
D.
Newton's Law
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Solution
Newton's Law is not a gas law; it pertains to motion and forces.
Correct Answer: D — Newton's Law
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Q. Which of the following is not a hydrogen compound?
A.
H2O
B.
NH3
C.
CH4
D.
CO2
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Solution
Carbon dioxide (CO2) is not a hydrogen compound as it does not contain hydrogen.
Correct Answer: D — CO2
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Q. Which of the following is NOT a method of producing polarized light?
A.
Reflection
B.
Refraction
C.
Scattering
D.
Diffraction
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Solution
Diffraction does not produce polarized light; it is a phenomenon related to the bending of waves around obstacles.
Correct Answer: D — Diffraction
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Q. Which of the following is NOT a method to increase the rate of adsorption?
A.
Increasing temperature
B.
Increasing surface area
C.
Increasing pressure
D.
Decreasing particle size
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Solution
Increasing temperature generally decreases the rate of adsorption for exothermic processes, while the other options increase the rate.
Correct Answer: A — Increasing temperature
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Q. Which of the following is not a p-block element?
A.
Carbon
B.
Boron
C.
Sodium
D.
Nitrogen
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Solution
Sodium is an s-block element, while the others are p-block elements.
Correct Answer: C — Sodium
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Q. Which of the following is NOT a postulate of the kinetic molecular theory?
A.
Gas particles are in constant random motion
B.
Gas particles have negligible volume
C.
Gas particles attract each other
D.
The average kinetic energy of gas particles is proportional to temperature
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Solution
The kinetic molecular theory assumes that gas particles do not attract each other, which is why option 3 is NOT a postulate.
Correct Answer: C — Gas particles attract each other
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Q. Which of the following is NOT a practical application of a Wheatstone bridge?
A.
Measuring small resistances
B.
Calibration of measuring instruments
C.
Determining the specific resistance of a material
D.
Generating high voltages
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Solution
A Wheatstone bridge is not used for generating high voltages; it is used for measuring resistances.
Correct Answer: D — Generating high voltages
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Q. Which of the following is NOT a practical application of the Wheatstone bridge?
A.
Measuring unknown resistances
B.
Calibration of measuring instruments
C.
Determining the specific heat of a substance
D.
Testing electrical components
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Solution
Determining the specific heat of a substance is not a practical application of the Wheatstone bridge.
Correct Answer: C — Determining the specific heat of a substance
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Q. Which of the following is NOT a property of elastomers?
A.
High elasticity
B.
Low tensile strength
C.
Good thermal stability
D.
Ability to return to original shape
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Solution
Elastomers typically do not have good thermal stability; they are more flexible and can return to their original shape after deformation.
Correct Answer: C — Good thermal stability
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Q. Which of the following is not a property of f-block elements?
A.
Radioactivity
B.
High density
C.
High melting points
D.
Non-magnetic
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Solution
F-block elements are generally magnetic due to unpaired electrons, so 'Non-magnetic' is not a property.
Correct Answer: D — Non-magnetic
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Q. Which of the following is not a property of hydrogen?
A.
Colorless
B.
Odorless
C.
Highly soluble in water
D.
Lightest element
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Solution
Hydrogen is not highly soluble in water; it is actually sparingly soluble.
Correct Answer: C — Highly soluble in water
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Q. Which of the following is not a property of ionic compounds?
A.
High melting point
B.
Electrical conductivity in solid state
C.
Solubility in water
D.
Brittleness
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Solution
Ionic compounds do not conduct electricity in solid state; they conduct when molten or dissolved.
Correct Answer: B — Electrical conductivity in solid state
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Q. Which of the following is NOT a property of polymers?
A.
High strength
B.
Low density
C.
Brittleness
D.
Corrosion resistance
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Solution
Brittleness is generally not a property of polymers; they are usually more flexible.
Correct Answer: C — Brittleness
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Q. Which of the following is not a state function?
A.
Enthalpy
B.
Internal Energy
C.
Heat
D.
Gibbs Free Energy
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Solution
Heat is not a state function; it depends on the path taken during a process.
Correct Answer: C — Heat
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Q. Which of the following is not a state of matter?
A.
Solid
B.
Liquid
C.
Gas
D.
Plasma
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Solution
All listed options are states of matter; however, 'Plasma' is often considered a fourth state, while 'Bose-Einstein condensate' is another state not listed.
Correct Answer: D — Plasma
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Q. Which of the following is not a subset of {a, b, c}?
A.
{a}
B.
{b, c}
C.
{a, b, c}
D.
{d}
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Solution
The set {d} does not contain any elements from {a, b, c}, so it is not a subset.
Correct Answer: D — {d}
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Q. Which of the following is not a transition metal?
A.
Iron
B.
Zinc
C.
Copper
D.
Nickel
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Solution
Zinc is not considered a transition metal because it does not have an incomplete d subshell in its elemental state.
Correct Answer: B — Zinc
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Q. Which of the following is NOT a type of adsorption isotherm?
A.
Langmuir
B.
Freundlich
C.
BET
D.
Henry
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Solution
Henry's law describes solubility, not adsorption, while Langmuir, Freundlich, and BET are types of adsorption isotherms.
Correct Answer: D — Henry
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Q. Which of the following is NOT a type of digital modulation?
A.
Amplitude Shift Keying (ASK)
B.
Frequency Shift Keying (FSK)
C.
Phase Shift Keying (PSK)
D.
Continuous Wave Modulation (CWM)
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Solution
Continuous Wave Modulation (CWM) is not a type of digital modulation; it refers to analog modulation techniques.
Correct Answer: D — Continuous Wave Modulation (CWM)
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Q. Which of the following is NOT a type of elastic deformation?
A.
Tensile deformation
B.
Compressive deformation
C.
Shear deformation
D.
Plastic deformation
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Solution
Plastic deformation is not elastic; it is permanent deformation that occurs beyond the elastic limit.
Correct Answer: D — Plastic deformation
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