📚NCERT Questions — CBSE11

When chlorine, bromine, and iodine combine with oxygen (e.g., in oxoacids), what kind of oxidation numbers do they typically exhibit?

Given the reactions: 1) ½N₂(g) + ½O₂(g) → NO(g); Δ_r H° = 90 kJ mol⁻¹ 2) NO(g) + ½O₂(g) → NO₂(g); Δ_r H° = -74 kJ mol⁻¹ Comment on the thermodynamic stability of NO(g).

In a chemical reaction, the reactant that gets consumed first and limits the amount of product formed is called the:

For a general reversible reaction aA + bB <=> cC + dD, the equilibrium constant Kc is expressed as:

What is the molarity of a solution containing 0.5 moles of solute in 2 liters of solution?

For a representative element in the third period, how does the highest value of oxidation number generally change across the period?

What is the main limitation of the Arrhenius concept of acids and bases?

In the Born-Haber cycle for NaCl, which step corresponds to the electron gain enthalpy (Δ_eg H°)?

If you have 1 M NaOH solution and want to prepare 0.2 M solution, how much volume of 1 M NaOH solution would you take to make 1 L of 0.2 M solution?

What is the freezing point of water on the Celsius scale?