Solutions / States Of Matter PYQs
All NEET previous year questions from Solutions / States Of Matter — with explanations.
Identify the correct statements: (A) The molality of 2.5 g of ethanoic acid (Molar mass: 60 g mol⁻¹) in 75 g of benzene solution is 0.556 m. (B) The molarity of a solution containing 5 g of NaOH (molar mass: 40 g mol⁻¹) in 450 mL of solution is 0.278 M at 298 K. (C) Aquatic species are more comfortable in cold water. (D) The solubility of gas increases with decrease in pressure. (E) For a binary mixture of A and B, the number of moles of A and B are nₐ and nᵦ respectively. The mole fraction of B will be: Xᵦ = nₐ / (nₐ + nᵦ) Choose the correct answer from the options given below :
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