📚NCERT Questions — CBSE11
591 solved questions with detailed explanations
Among cations of the same size and charge, which type is more polarizing?
If the reaction quotient Qc is equal to the equilibrium constant Kc (Qc = Kc), what is the state of the reaction mixture?
Is the reaction Fe2O3(s) + 3CO(g) → 2Fe(s) + 3CO2(g) a redox reaction?
For a process occurring at constant temperature and pressure, what is the relationship between Gibbs energy change (ΔG), enthalpy change (ΔH), and entropy change (ΔS)?
What is the magnetic property of O22- (peroxide ion)?
What is the primary principle of VSEPR theory?
Which of the following orbitals has the lowest energy according to the (n+l) rule?
Show that the circumference of the Bohr orbit for the hydrogen atom is an integral multiple of the de Broglie wavelength associated with the electron revolving around the orbit.
Given the enthalpies of formation: CO(g) = -110 kJ mol⁻¹, CO₂(g) = -393 kJ mol⁻¹, N₂O(g) = 81 kJ mol⁻¹, N₂O₄(g) = 9.7 kJ mol⁻¹. Calculate Δ_r H for the reaction: N₂O₄(g) + 3CO(g) → N₂O(g) + 3CO₂(g).
Which combination of elements would most easily form an ionic bond?