📚NCERT Questions — CBSE11

In the reaction N2(g) + 3H2(g) → 2NH3(g), if 50.0 kg of N2 and 10.0 kg of H2 are mixed, which is the limiting reagent?

For a general solid salt MxXy, with molar solubility S, and where x*p+ = y*q-, what is the general expression for Ksp?

What is the normal melting point of a substance?

Calculate the oxidation number of phosphorus in NaH2PO4.

Calculate the oxidation number of carbon in CH3CH2OH (ethanol).

Calculate the oxidation number of boron in NaBH4.

For the combustion of 1g of graphite in a bomb calorimeter, ΔU = -20.7 kJ. If the reaction is C(graphite) + O₂(g) → CO₂(g), and Δn_g = 0, what is ΔH for the combustion of 1 mol of graphite?

The Aufbau principle states that in the ground state of atoms, orbitals are filled in the order of their:

How are hydrogen atoms balanced in the final step of the oxidation number method?

For the reaction 2Cl(g) → Cl₂(g), what are the signs of ΔH and ΔS?