Chemistry Syllabus (JEE Main)

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Q. In which scenario would ΔG be zero?
  • A. At standard conditions
  • B. At equilibrium
  • C. In a spontaneous reaction
  • D. In a non-spontaneous reaction
Q. In which state of matter do molecules have the least freedom of movement?
  • A. Solid
  • B. Liquid
  • C. Gas
  • D. Plasma
Q. In which state of matter do particles have the highest kinetic energy?
  • A. Solid
  • B. Liquid
  • C. Gas
  • D. Plasma
Q. In which type of reaction is the change in enthalpy equal to the heat absorbed or released at constant pressure?
  • A. Endothermic reaction
  • B. Exothermic reaction
  • C. Isothermal reaction
  • D. Adiabatic reaction
Q. Solve for x: 3(x - 1) = 2(x + 4).
  • A. -10
  • B. 10
  • C. 2
  • D. 3
Q. Solve for x: 3(x - 2) = 12.
  • A. 2
  • B. 4
  • C. 6
  • D. 8
Q. Solve for x: 5x + 2 = 3x + 10.
  • A. 4
  • B. 3
  • C. 2
  • D. 1
Q. Solve for x: x^2 - 9 = 0.
  • A. -3
  • B. 3
  • C. 0
  • D. ±3
Q. Solve for y: 4y + 8 = 24.
  • A. 2
  • B. 3
  • C. 4
  • D. 5
Q. The Arrhenius equation relates the rate constant to which of the following?
  • A. Temperature and concentration
  • B. Temperature and activation energy
  • C. Concentration and pressure
  • D. Temperature and volume
Q. The enthalpy change for a reaction can be calculated using which of the following?
  • A. Bond energies
  • B. Standard enthalpies of formation
  • C. Calorimetry
  • D. All of the above
Q. The enthalpy change for the reaction A + B → C is +50 kJ/mol. What can be said about the reaction?
  • A. It is exothermic
  • B. It is endothermic
  • C. It is spontaneous
  • D. It is at equilibrium
Q. The enthalpy of vaporization of a substance is defined as:
  • A. The heat required to melt the substance
  • B. The heat required to convert a liquid into a gas
  • C. The heat released during condensation
  • D. The heat required to raise the temperature of a substance
Q. The enthalpy of vaporization of water is approximately ____ kJ/mol.
  • A. 40.79
  • B. 60.79
  • C. 80.79
  • D. 100.79
Q. The enthalpy of vaporization of water is approximately:
  • A. 40.79 kJ/mol
  • B. 2260 kJ/mol
  • C. 100 kJ/mol
  • D. 60 kJ/mol
Q. The entropy change for a phase transition at constant temperature is given by:
  • A. ΔS = ΔH/T
  • B. ΔS = T/ΔH
  • C. ΔS = ΔH*T
  • D. ΔS = ΔH + T
Q. The entropy change for a reaction can be calculated using which of the following?
  • A. ΔS = ΣS(products) - ΣS(reactants)
  • B. ΔS = ΣS(reactants) - ΣS(products)
  • C. ΔS = Q/T
  • D. ΔS = W/T
Q. The entropy of a perfect crystal at absolute zero is given by:
  • A. R
  • B. 0
  • C.
  • D. 1
Q. The entropy of a perfect crystal at absolute zero is:
  • A. Maximum
  • B. Minimum
  • C. Undefined
  • D. Infinite
Q. The entropy of a perfect crystal at absolute zero temperature is given by which law?
  • A. Third law of thermodynamics
  • B. First law of thermodynamics
  • C. Second law of thermodynamics
  • D. Zeroth law of thermodynamics
Q. The entropy of a perfect crystal at absolute zero temperature is given by:
  • A. 0
  • B. 1
  • C. Infinity
  • D. Depends on the substance
Q. The entropy of a perfect crystalline substance at absolute zero is given by which law?
  • A. Third law of thermodynamics
  • B. First law of thermodynamics
  • C. Second law of thermodynamics
  • D. Zeroth law of thermodynamics
Q. The entropy of a perfect crystalline substance at absolute zero is:
  • A. Zero
  • B. Maximum
  • C. Undefined
  • D. Infinite
Q. The Freundlich adsorption isotherm is applicable to which type of adsorption?
  • A. Physisorption only
  • B. Chemisorption only
  • C. Both physisorption and chemisorption
  • D. None of the above
Q. The half-life of a first-order reaction is dependent on which of the following?
  • A. Initial concentration
  • B. Rate constant
  • C. Temperature
  • D. All of the above
Q. The Langmuir adsorption isotherm assumes that:
  • A. Adsorption occurs on a surface with infinite sites
  • B. Adsorption sites are equivalent
  • C. Adsorption is a multilayer process
  • D. Adsorption is independent of pressure
Q. The Langmuir adsorption isotherm assumes which of the following?
  • A. Adsorption occurs on a surface with infinite sites
  • B. Adsorption sites are equivalent
  • C. Adsorption is a multilayer process
  • D. Adsorption is temperature independent
Q. The Langmuir isotherm assumes that adsorption occurs at specific sites on the adsorbent. What is the maximum number of molecules that can be adsorbed at a given temperature called?
  • A. Adsorption capacity
  • B. Saturation capacity
  • C. Equilibrium constant
  • D. Adsorption energy
Q. The phenomenon of surface tension is primarily due to which type of forces?
  • A. Cohesive forces
  • B. Adhesive forces
  • C. Gravitational forces
  • D. Electrostatic forces
Q. The quadratic equation x^2 + 4x + k = 0 has roots that are both negative. What is the condition on k?
  • A. k < 0
  • B. k > 0
  • C. k < 4
  • D. k > 4
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