JEE Advanced · Chemistry

Physical and inorganic chemistry

70 practice questions, each with the answer and an explanation.

Practise Physical and inorganic chemistry now

Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.

All 70 questions

  1. 2 dm³ of a gas at 300 K is brought to 450 K at constant pressure. What is the new volume?
  2. How many water molecules are present in 0.5 mol of H₂O? (Avogadro constant = 6.02 × 10²³ per mol)
  3. The rate of a reaction is proportional to [A]^2. By what factor does the rate change if [A] is multiplied by 3?
  4. A first-order reaction has a rate constant of 0.0347 per min. What is its half-life? (ln 2 = 0.693)
  5. A current of 9.65 A is passed for 2000 s through a solution of a zinc salt, where each Zn ion gains 2 electrons. What mass of zinc is deposited? (F = 96500 C/mol; molar mass 65 g/mol)
  6. Given ΔHf(CO₂) = −394 kJ/mol, ΔHf(H₂O, liquid) = −286 kJ/mol and ΔHf(CH₄) = −75 kJ/mol, find the enthalpy of combustion of methane, CH₄ + 2O₂ → CO₂ + 2H₂O.
  7. How many moles are there in 168 g of NaHCO₃? (molar mass 84 g/mol)
  8. What is the mass of 1.5 mol of NaOH? (molar mass 40 g/mol)
  9. What is the electronic configuration (shell by shell) of the element O (atomic number 8)?
  10. A gas occupies 12 dm³ at 1 atm. What volume does it occupy at 5 atm and constant temperature?
  11. A first-order reaction has a rate constant of 0.0693 per min. What is its half-life? (ln 2 = 0.693)
  12. For A + B ⇌ 2C, the equilibrium concentrations are [A] = 3 mol/dm³, [B] = 1 mol/dm³ and [C] = 6 mol/dm³. What is Kc?
  13. How many moles are there in 48 g of CH₄? (molar mass 16 g/mol)
  14. What is the mass of 0.25 mol of C₆H₁₂O₆? (molar mass 180 g/mol)
  15. What is the electronic configuration (shell by shell) of the element Li (atomic number 3)?
  16. A gas occupies 4 dm³ at 5 atm. What volume does it occupy at 25 atm and constant temperature?
  17. How many methane molecules are present in 0.25 mol of CH₄? (Avogadro constant = 6.02 × 10²³ per mol)
  18. A first-order reaction has a rate constant of 0.00693 per min. What is its half-life? (ln 2 = 0.693)
  19. For A + B ⇌ 2C, the equilibrium concentrations are [A] = 2 mol/dm³, [B] = 1 mol/dm³ and [C] = 4 mol/dm³. What is Kc?
  20. How many moles are there in 800 g of Fe₂O₃? (molar mass 160 g/mol)
  21. What is the mass of 1.5 mol of Fe₂O₃? (molar mass 160 g/mol)
  22. What is the pH of 10⁻3 mol/dm³ hydrochloric acid (a strong monobasic acid)?
  23. What volume does 3 mol of N₂ gas occupy at STP? (molar volume 22.4 dm³/mol)
  24. A gas occupies 10 dm³ at 1 atm. What volume does it occupy at 4 atm and constant temperature?
  25. How many methane molecules are present in 2 mol of CH₄? (Avogadro constant = 6.02 × 10²³ per mol)
  26. A current of 24.125 A is passed for 2000 s through a solution of a aluminium salt, where each Al ion gains 3 electrons. What mass of aluminium is deposited? (F = 96500 C/mol; molar mass 27 g/mol)
  27. What is the molar mass of NH₃? (H = 1, C = 12, N = 14, O = 16, Na = 23, Mg = 24, Al = 27, S = 32, Cl = 35.5, K = 39, Ca = 40, Mn = 55, Fe = 56)
  28. What is the mass of 3 mol of HNO₃? (molar mass 63 g/mol)
  29. What volume does 0.25 mol of O₂ gas occupy at STP? (molar volume 22.4 dm³/mol)
  30. 2 dm³ of a gas at 300 K is brought to 225 K at constant pressure. What is the new volume?
  31. How many methane molecules are present in 3 mol of CH₄? (Avogadro constant = 6.02 × 10²³ per mol)
  32. For A + B ⇌ 2C, the equilibrium concentrations are [A] = 1 mol/dm³, [B] = 4 mol/dm³ and [C] = 4 mol/dm³. What is Kc?
  33. A current of 48.25 A is passed for 1000 s through a solution of a zinc salt, where each Zn ion gains 2 electrons. What mass of zinc is deposited? (F = 96500 C/mol; molar mass 65 g/mol)
  34. How many moles are there in 192 g of SO₂? (molar mass 64 g/mol)
  35. What is the mass of 1.5 mol of H₂O? (molar mass 18 g/mol)
  36. A gas occupies 10 dm³ at 5 atm. What volume does it occupy at 10 atm and constant temperature?
  37. 4 dm³ of a gas at 300 K is brought to 450 K at constant pressure. What is the new volume?
  38. The rate of a reaction is proportional to [A]^3. By what factor does the rate change if [A] is multiplied by 2?
  39. A current of 9.65 A is passed for 2000 s through a solution of a aluminium salt, where each Al ion gains 3 electrons. What mass of aluminium is deposited? (F = 96500 C/mol; molar mass 27 g/mol)
  40. What is the molar mass of MgO? (H = 1, C = 12, N = 14, O = 16, Na = 23, Mg = 24, Al = 27, S = 32, Cl = 35.5, K = 39, Ca = 40, Mn = 55, Fe = 56)
  41. What is the mass of 1.5 mol of Al₂O₃? (molar mass 102 g/mol)
  42. A gas occupies 12 dm³ at 1 atm. What volume does it occupy at 2 atm and constant temperature?
  43. 10 dm³ of a gas at 250 K is brought to 375 K at constant pressure. What is the new volume?
  44. How many water molecules are present in 3 mol of H₂O? (Avogadro constant = 6.02 × 10²³ per mol)
  45. The rate of a reaction is proportional to [A]^3. By what factor does the rate change if [A] is multiplied by 3?
  46. For A + B ⇌ 2C, the equilibrium concentrations are [A] = 1 mol/dm³, [B] = 2 mol/dm³ and [C] = 4 mol/dm³. What is Kc?
  47. A current of 48.25 A is passed for 1000 s through a solution of a aluminium salt, where each Al ion gains 3 electrons. What mass of aluminium is deposited? (F = 96500 C/mol; molar mass 27 g/mol)
  48. How many moles are there in 14 g of CaO? (molar mass 56 g/mol)
  49. What is the mass of 3 mol of NH₃? (molar mass 17 g/mol)
  50. A gas occupies 2 dm³ at 1 atm. What volume does it occupy at 4 atm and constant temperature?
  51. 6 dm³ of a gas at 200 K is brought to 300 K at constant pressure. What is the new volume?
  52. A gas at 1 atm, 2 dm³ and 400 K changes to 4 atm and 300 K. What is the new volume?
  53. How many methane molecules are present in 0.5 mol of CH₄? (Avogadro constant = 6.02 × 10²³ per mol)
  54. A current of 24.125 A is passed for 2000 s through a solution of a zinc salt, where each Zn ion gains 2 electrons. What mass of zinc is deposited? (F = 96500 C/mol; molar mass 65 g/mol)
  55. How many moles are there in 54 g of H₂O? (molar mass 18 g/mol)
  56. A gas occupies 6 dm³ at 4 atm. What volume does it occupy at 20 atm and constant temperature?
  57. 2 dm³ of a gas at 200 K is brought to 150 K at constant pressure. What is the new volume?
  58. How many water molecules are present in 5 mol of H₂O? (Avogadro constant = 6.02 × 10²³ per mol)
  59. A solution contains 0.25 mol of a non-volatile non-electrolyte in 1 kg of water. What is the boiling point elevation? (constant = 0.52 K kg/mol)
  60. What is the mass of 2 mol of NH₃? (molar mass 17 g/mol)
  61. What is the pH of 10⁻1 mol/dm³ sodium hydroxide at 25 °C?
  62. A gas occupies 4 dm³ at 4 atm. What volume does it occupy at 16 atm and constant temperature?
  63. 10 dm³ of a gas at 200 K is brought to 300 K at constant pressure. What is the new volume?
  64. A gas at 1 atm, 6 dm³ and 300 K changes to 8 atm and 600 K. What is the new volume?
  65. How many moles are there in 45 g of C₆H₁₂O₆? (molar mass 180 g/mol)
  66. What is the mass of 3 mol of HCl? (molar mass 36.5 g/mol)
  67. What volume does 2 mol of CO₂ gas occupy at STP? (molar volume 22.4 dm³/mol)
  68. A gas occupies 10 dm³ at 5 atm. What volume does it occupy at 20 atm and constant temperature?
  69. 10 dm³ of a gas at 400 K is brought to 500 K at constant pressure. What is the new volume?
  70. A gas at 2 atm, 3 dm³ and 400 K changes to 4 atm and 600 K. What is the new volume?

Keep practising

More JEE Advanced topics

All JEE Advanced practice →

Ready for the full JEE Advanced test?

Take a mock testJEE Advanced hub