📚NCERT Questions — CBSE11
591 solved questions with detailed explanations
Compare the bond order of O2, O2+, and O2-.
The metre is defined based on the fixed numerical value of the speed of light in vacuum. What is the unit for speed of light?
In the reaction N2(g) + 3H2(g) → 2NH3(g), if 17.86 x 10^2 mol of N2 and 4.96 x 10^3 mol of H2 are available, how much NH3 (in moles) can be formed?
Calculate the oxidation number of carbon in CH3COOH (acetic acid).
J.J. Thomson's experiment for determining the charge to mass ratio (e/m_e) of an electron showed that the deflection of electrons is directly proportional to:
What is the wavelength of light emitted when the electron in a hydrogen atom undergoes transition from an energy level with n=4 to an energy level with n=2? (Rydberg constant R_H = 1.09677 x 10⁷ m⁻¹)
The Born-Haber Cycle is an indirect method used to calculate which thermodynamic quantity for ionic compounds?
For the reaction 2A <=> B + C, Kc = 2 x 10^-3. If at a given time, [A]=[B]=[C]=3 x 10^-4 M, in which direction will the reaction proceed?
If the equilibrium constant for the reaction H2(g) + I2(g) <=> 2HI(g) is Kc = x, what is the equilibrium constant for the reaction 2HI(g) <=> H2(g) + I2(g) at the same temperature?
Which of the following is an intensive property?