The enthalpy change for a reaction does not depend upon:

The enthalpy of intermediate steps

The nature of initial and final substances

The enthalpy of intermediate steps

The difference in number of moles of reactants and products

Initial and final enthalpy of the reaction

Which of the following statements is incorrect?

The energy of 2s orbital is less than the energy of 2p orbital in case of Hydrogen like atoms.

Heisenberg’s uncertainty principle is Δx ⋅ Δp ≥ h/4π.

Half filled and fully filled orbitals have greater stability due to greater exchange energy, greater symmetry and more balanced arrangement.

The energy of 2s orbital is less than the energy of 2p orbital in case of Hydrogen like atoms.

de-Broglie’s wavelength is given by λ = h/mv, where m = mass of the particle, v = group velocity of the particle.

The enthalpy of intermediate steps

The energy of 2s orbital is less than the energy of 2p orbital in case of Hydrogen like atoms.

What is the correct order of the following compounds with respect to their acidity: (I) Phenol (II) o-nitrophenol (III) o-cresol?

The major product of the following reaction is: C6H5CH2CH2OH + (i) PBr3 (ii) KCN, H2O, heat

The freezing point depression of a solution containing 0.1 g of K3[Fe(CN)6] (Molar mass 329 g/mol) in 100 g of water is (Kf = 1.86 K kg/mol)

Which of the following is most effective in causing the coagulation of a positively charged colloidal sol?

Consider the following reactions: (A) (CH3)3C-Br + H2O -> (CH3)3C-OH + HBr (B) (CH3)3C-Br + C2H5O- -> (CH3)3C-OC2H5 + Br- Which mechanism is more likely for each reaction?