Major Competitive Exams

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Q. Which of the following statements is true about aromatic compounds? (2022)
  • A. They are always saturated
  • B. They contain a benzene ring
  • C. They are non-polar
  • D. They do not undergo electrophilic substitution
Q. Which of the following statements is true about beryllium?
  • A. It is more reactive than magnesium
  • B. It forms covalent compounds
  • C. It has a higher density than lithium
  • D. It is a liquid at room temperature
Q. Which of the following statements is true about carboxylic acids?
  • A. They are always soluble in water
  • B. They have higher boiling points than alcohols
  • C. They cannot form hydrogen bonds
  • D. They are weak bases
Q. Which of the following statements is true about catalysts?
  • A. They are consumed in the reaction
  • B. They increase the activation energy
  • C. They provide an alternative pathway with lower activation energy
  • D. They change the equilibrium constant
Q. Which of the following statements is true about continuous functions?
  • A. They can be differentiated everywhere
  • B. They are always bounded
  • C. They can be integrated
  • D. They can have jump discontinuities
Q. Which of the following statements is true about coordination compounds?
  • A. They always have a positive charge
  • B. They can exhibit color
  • C. They cannot form complexes
  • D. They are always soluble in water
Q. Which of the following statements is true about coordination compounds? (2021) 2021
  • A. They are always ionic
  • B. They can exhibit optical isomerism
  • C. They have fixed oxidation states
  • D. They cannot form complexes
Q. Which of the following statements is true about dynamic equilibrium?
  • A. The concentrations of reactants and products are equal
  • B. The rate of the forward reaction equals the rate of the reverse reaction
  • C. The reaction has stopped
  • D. All reactions reach dynamic equilibrium
Q. Which of the following statements is true about electric current? (2019)
  • A. It is the flow of protons.
  • B. It is the flow of electrons.
  • C. It is the flow of neutrons.
  • D. It is the flow of ions.
Q. Which of the following statements is true about electric field lines?
  • A. They can cross each other
  • B. They are always straight
  • C. They point from positive to negative
  • D. They are always circular
Q. Which of the following statements is true about electrolysis?
  • A. It requires a spontaneous reaction
  • B. It is an endothermic process
  • C. It involves the decomposition of a compound
  • D. It occurs in a galvanic cell
Q. Which of the following statements is true about electrolytic cells?
  • A. They produce electrical energy
  • B. They require an external power source
  • C. They operate spontaneously
  • D. They are always exothermic
Q. Which of the following statements is true about entropy?
  • A. Entropy is a measure of disorder
  • B. Entropy decreases in irreversible processes
  • C. Entropy is constant in reversible processes
  • D. Both a and c are true
Q. Which of the following statements is true about equipotential surfaces?
  • A. They are always parallel to each other
  • B. No work is done moving a charge along them
  • C. They can intersect
  • D. They are always spherical
Q. Which of the following statements is true about ethers?
  • A. They are polar compounds
  • B. They have high boiling points
  • C. They are highly reactive
  • D. They are used as solvents
Q. Which of the following statements is true about exothermic reactions? (2019)
  • A. They absorb heat.
  • B. They release heat.
  • C. They require energy input.
  • D. They have a positive enthalpy change.
Q. Which of the following statements is true about galvanic cells? (2020)
  • A. They convert chemical energy to electrical energy
  • B. They require an external power source
  • C. They operate only in acidic solutions
  • D. They are always non-spontaneous
Q. Which of the following statements is true about gases?
  • A. They have a definite volume.
  • B. They are incompressible.
  • C. They fill the shape of their container.
  • D. They have strong intermolecular forces.
Q. Which of the following statements is true about geostationary satellites?
  • A. They orbit the Earth in a polar orbit.
  • B. They have a period equal to the Earth's rotation period.
  • C. They are always in the same position relative to the Earth.
  • D. Both b and c
Q. Which of the following statements is true about Gibbs Free Energy?
  • A. ΔG is always positive for spontaneous processes.
  • B. ΔG = ΔH - TΔS.
  • C. ΔG can never be zero.
  • D. ΔG is independent of temperature.
Q. Which of the following statements is true about gravitational field lines?
  • A. They are straight lines
  • B. They can cross each other
  • C. They point towards the mass
  • D. They are always circular
Q. Which of the following statements is true about gravitational potential energy?
  • A. It is always positive.
  • B. It can be negative.
  • C. It is independent of position.
  • D. It is always zero.
Q. Which of the following statements is true about ionic compounds?
  • A. They have low melting points
  • B. They conduct electricity in solid state
  • C. They are soluble in water
  • D. They are volatile
Q. Which of the following statements is true about isotopes?
  • A. They have the same number of protons
  • B. They have different chemical properties
  • C. They have different atomic numbers
  • D. They have the same mass number
Q. Which of the following statements is true about ketones?
  • A. They can be oxidized to carboxylic acids
  • B. They have a higher boiling point than aldehydes
  • C. They cannot form hydrogen bonds
  • D. They are more reactive than aldehydes
Q. Which of the following statements is true about liquids?
  • A. They have a definite shape.
  • B. They are incompressible.
  • C. They have a fixed volume.
  • D. Both B and C.
Q. Which of the following statements is true about magnetic field lines?
  • A. They can cross each other
  • B. They are closed loops
  • C. They start from south and end at north
  • D. They are always straight lines
Q. Which of the following statements is true about phenols? (2023)
  • A. They are stronger acids than alcohols
  • B. They do not react with bases
  • C. They are less soluble in water than alcohols
  • D. They are non-toxic
Q. Which of the following statements is true about real gases compared to ideal gases?
  • A. Real gases obey gas laws perfectly
  • B. Real gases have no intermolecular forces
  • C. Real gases occupy no volume
  • D. Real gases deviate from ideal behavior at high pressure
Q. Which of the following statements is true about real gases?
  • A. They obey the ideal gas law at all conditions
  • B. They have no volume
  • C. They experience intermolecular forces
  • D. They cannot be liquefied
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