Q. Which of the following is an example of chain isomerism?
A.
Pentane and 2-methylbutane
B.
Butene and Butyne
C.
Ethanol and Dimethyl ether
D.
Acetic acid and Propanoic acid
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Solution
Pentane and 2-methylbutane differ in the arrangement of carbon atoms, thus showing chain isomerism.
Correct Answer: A — Pentane and 2-methylbutane
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Q. Which of the following is an example of cis-trans isomerism?
A.
1-pentene
B.
2-pentene
C.
3-pentene
D.
Cyclopentane
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Solution
2-pentene can exist in cis and trans forms due to the presence of a double bond.
Correct Answer: B — 2-pentene
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Q. Which of the following is an example of conduction?
A.
Boiling water
B.
Heating a metal rod
C.
Sun warming the Earth
D.
Wind blowing
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Solution
Heating a metal rod is an example of conduction, where heat is transferred through direct contact between particles.
Correct Answer: B — Heating a metal rod
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Q. Which of the following is an example of convection?
A.
Heating a metal rod in a flame
B.
Boiling water in a pot
C.
Sunlight warming the ground
D.
Ice melting in a drink
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Solution
Boiling water in a pot is a classic example of convection, where hot water rises and cooler water descends.
Correct Answer: B — Boiling water in a pot
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Q. Which of the following is an example of forced convection?
A.
Heat transfer in a pot of boiling water
B.
Heat transfer from a radiator
C.
Heat transfer from a hot cup of coffee
D.
Heat transfer in a still air room
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Solution
Heat transfer in a pot of boiling water is an example of forced convection.
Correct Answer: B — Heat transfer from a radiator
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Q. Which of the following is an example of heat transfer by radiation?
A.
Heating a metal rod in a flame
B.
Sunlight warming the Earth
C.
Boiling water in a pot
D.
Heating air in a room
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Solution
Sunlight warming the Earth is an example of heat transfer by radiation, as it does not require a medium.
Correct Answer: B — Sunlight warming the Earth
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Q. Which of the following is an example of optical isomerism?
A.
Lactic acid
B.
Butane
C.
Cyclohexane
D.
Acetone
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Solution
Lactic acid has a chiral center and can exist as two enantiomers, thus exhibiting optical isomerism.
Correct Answer: A — Lactic acid
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Q. Which of the following is an example of physisorption?
A.
Adsorption of hydrogen on palladium
B.
Adsorption of water on silica gel
C.
Adsorption of oxygen on activated charcoal
D.
Adsorption of ammonia on copper
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Solution
Physisorption involves weak van der Waals forces, and the adsorption of oxygen on activated charcoal is a classic example.
Correct Answer: C — Adsorption of oxygen on activated charcoal
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Q. Which of the following is an example of structural isomerism?
A.
Cis-2-butene and trans-2-butene
B.
1-bromopropane and 2-bromopropane
C.
Glucose and fructose
D.
1,2-dichloroethane and 1,1-dichloroethane
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Solution
1-bromopropane and 2-bromopropane differ in the position of the bromine atom, showing structural isomerism.
Correct Answer: B — 1-bromopropane and 2-bromopropane
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Q. Which of the following is an example of tautomeric isomerism?
A.
Acetaldehyde and Ethanol
B.
Acetone and Propan-2-ol
C.
Keto-enol tautomerism
D.
Cis and Trans isomers
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Solution
Keto-enol tautomerism is a classic example of tautomeric isomerism.
Correct Answer: C — Keto-enol tautomerism
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Q. Which of the following is an extensive property?
A.
Temperature
B.
Pressure
C.
Volume
D.
Density
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Solution
Volume is an extensive property, as it depends on the amount of substance present.
Correct Answer: C — Volume
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Q. Which of the following is an identity?
A.
sin^2 x + cos^2 x = 1
B.
tan x = sin x / cos x
C.
sec x = 1/cos x
D.
All of the above
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Solution
All the given options are trigonometric identities.
Correct Answer: D — All of the above
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Q. Which of the following is equivalent to log_a(b^c)?
A.
c * log_a(b)
B.
log_a(b) / c
C.
log_a(c) + log_a(b)
D.
log_a(b) - c
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Solution
log_a(b^c) = c * log_a(b) by the power rule of logarithms.
Correct Answer: A — c * log_a(b)
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Q. Which of the following is NOT a base unit in the SI system?
A.
Meter
B.
Kilogram
C.
Second
D.
Liter
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Solution
Liter is not a base unit; it is a derived unit for volume, while meter, kilogram, and second are base units.
Correct Answer: D — Liter
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Q. Which of the following is NOT a characteristic of a satellite in a stable orbit?
A.
It experiences no net force.
B.
It moves with constant speed.
C.
It has a constant distance from the Earth.
D.
It is in free fall.
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Solution
A satellite in a stable orbit does experience a net force (gravitational force), but it is in free fall, moving with constant speed along a curved path.
Correct Answer: A — It experiences no net force.
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Q. Which of the following is NOT a characteristic of adsorption?
A.
It is a surface phenomenon.
B.
It is a bulk phenomenon.
C.
It is exothermic in nature.
D.
It reaches equilibrium.
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Solution
Adsorption is a surface phenomenon, while absorption is a bulk phenomenon.
Correct Answer: B — It is a bulk phenomenon.
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Q. Which of the following is NOT a characteristic of chemisorption?
A.
Reversible
B.
High heat of adsorption
C.
Specificity
D.
Monolayer formation
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Solution
Chemisorption is typically irreversible, unlike physisorption which is reversible.
Correct Answer: A — Reversible
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Q. Which of the following is NOT a characteristic of gases?
A.
They have no definite shape.
B.
They are compressible.
C.
They have a definite volume.
D.
They fill the container they are in.
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Solution
Gases do not have a definite volume; they expand to fill their container.
Correct Answer: C — They have a definite volume.
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Q. Which of the following is NOT a characteristic of liquids?
A.
Definite volume
B.
Definite shape
C.
Incompressible
D.
Fluidity
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Solution
Liquids have a definite volume but take the shape of their container, hence they do not have a definite shape.
Correct Answer: B — Definite shape
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Q. Which of the following is not a characteristic of noble gases?
A.
Inertness
B.
Monatomic nature
C.
High reactivity
D.
Low boiling points
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Solution
Noble gases are known for their inertness and low reactivity, making high reactivity incorrect.
Correct Answer: C — High reactivity
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Q. Which of the following is NOT a characteristic of the inductive effect?
A.
Permanent
B.
Distance-dependent
C.
Reversible
D.
Weakens with distance
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Solution
The inductive effect is permanent and weakens with distance, but it is not reversible.
Correct Answer: C — Reversible
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Q. Which of the following is not a characteristic of transition metals?
A.
Variable oxidation states
B.
Formation of colored compounds
C.
High electronegativity
D.
Catalytic properties
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Solution
Transition metals typically have variable oxidation states, form colored compounds, and exhibit catalytic properties, but they do not have high electronegativity.
Correct Answer: C — High electronegativity
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Q. Which of the following is NOT a characteristic of waves?
A.
Reflection
B.
Refraction
C.
Diffraction
D.
Conduction
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Solution
Conduction is a mode of heat transfer, not a characteristic of wave motion. The other options are properties of waves.
Correct Answer: D — Conduction
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Q. Which of the following is NOT a component of a Wheatstone bridge?
A.
Galvanometer
B.
Battery
C.
Inductor
D.
Resistors
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Solution
An inductor is not a component of a Wheatstone bridge; it consists of resistors, a galvanometer, and a battery.
Correct Answer: C — Inductor
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Q. Which of the following is NOT a condition for a Wheatstone bridge to be balanced?
A.
The ratio of resistances must be equal
B.
No current flows through the galvanometer
C.
The resistances must be equal
D.
The potential difference across the galvanometer is zero
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Solution
While the other conditions are necessary for balance, the resistances do not need to be equal, just in the same ratio.
Correct Answer: C — The resistances must be equal
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Q. Which of the following is NOT a condition for Raoult's Law to be applicable?
A.
The solution must be ideal.
B.
The solute must be non-volatile.
C.
The components must be miscible in all proportions.
D.
The solution must be at high pressure.
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Solution
Raoult's Law is applicable under conditions of ideal solutions, and high pressure is not a requirement.
Correct Answer: D — The solution must be at high pressure.
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Q. Which of the following is NOT a condition for Raoult's Law to hold true?
A.
The solution must be ideal.
B.
The solute must be volatile.
C.
The solute and solvent must be miscible.
D.
The temperature must be constant.
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Solution
Raoult's Law applies to ideal solutions, and it is not necessary for the solute to be volatile.
Correct Answer: B — The solute must be volatile.
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Q. Which of the following is NOT a derivative of carboxylic acid?
A.
Ester
B.
Amide
C.
Acid chloride
D.
Alcohol
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Solution
Alcohols are not derivatives of carboxylic acids; they are separate functional groups.
Correct Answer: D — Alcohol
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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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