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Choose the incorrect pair.
| (a) | π = CRT | Osmotic pressure |
| (b) | \(ΔT_f=\frac{K_f\times W_B\times 1000}{M_B\times W_A}\) | Depression in freezing point |
| (c) | \(ΔT_b=\frac{K_f\times W_A\times 1000}{M_A\times W_B}\) | Elevation in boiling point |
| (d) | \(\frac{Δ_P}{P°_A} =\frac{W_B\times W_A}{M_B\times W_B}\) | Relative lowering of vapour pressure |