202360 marks17 questions
5 of its 17 questions are here. The rest have a figure or are still being checked, so for now they're only in the official PDF.
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Source: JEE (Advanced) 2023, Paper 1, Chemistry, published by JEE (Advanced). The official PDF
The correct statement(s) related to processes involved in the extraction of metals is(are)
Plotting 1/Λₘ against cΛₘ for aqueous solutions of a monobasic weak acid (HX) resulted in a straight line with y-axis intercept of P and slope of S. The ratio P/S is [Λₘ = molar conductivity; Λₘ° = limiting molar conductivity; c = molar concentration; Kₐ = dissociation constant of HX]
On decreasing the pH from 7 to 2, the solubility of a sparingly soluble salt (MX) of a weak acid (HX) increased from 10⁻⁴ mol L⁻¹ to 10⁻³ mol L⁻¹. The pKₐ of HX is
The stoichiometric reaction of 516 g of dimethyldichlorosilane with water results in a tetrameric cyclic product X in 75% yield. The weight (in g) of X obtained is___. [Use, molar mass (g mol⁻¹): H = 1, C = 12, O = 16, Si = 28, Cl = 35.5]
A gas has a compressibility factor of 0.5 and a molar volume of 0.4 dm³ mol⁻¹ at a temperature of 800 K and pressure x atm. If it shows ideal gas behaviour at the same temperature and pressure, the molar volume will be y dm³ mol⁻¹. The value of x/y is ___. [Use: Gas constant, R = 8 × 10⁻² L atm K⁻¹ mol⁻¹]