CUET - Chemistry Mock Tests

One mole of an ideal gas at 300 K and 10 atm pressure expands isothermally against a constant external pressure of 1 atm until its final pressure is 1 atm. The heat absorbed (q) during this process is (C_v = 20.8 J·K⁻¹·mol⁻¹, R = 8.314 J·K⁻¹·mol⁻¹, ln(10) = 2.303):

The correct order of stability for the following oxidation states of manganese is:

Lattice energy of an ionic compound depends on which of the following factors?

The mass of an electron is 9.1 × 10⁻³¹ kg. If the uncertainty in its position is 0.001 nm, what is the uncertainty in its velocity? (h = 6.626 × 10⁻³⁴ J·s)

What is the unit of the rate constant for a second-order reaction?

Given: C(s) + O₂(g) → CO₂(g), ΔH = -393.5 kJ/mol 2CO(g) + O₂(g) → 2CO₂(g), ΔH = -566.0 kJ/mol What is the enthalpy of formation of CO(g) from C(s) and O₂(g)?

Which gas is responsible for acid rain?

The most common type of intermolecular force responsible for the high boiling point of water is: