19 verified questions · ~17 minutes · answer key checked against the official NTA final key across multiple sources. Text-only questions (diagram-based excluded until they can be shown properly).
A mixture of 1 g each of chlorobenzene, aniline, and benzoic acid is dissolved in 50 mL ethyl acetate and placed in a separating funnel. 5 M NaOH (30 mL) was added in the same funnel. The funnel was shaken vigorously and then kept aside. The ethyl acetate layer in the funnel contains :
The hydration energies of K⁺ and Cl⁻ are −x and −y kJ/mol respectively. If the lattice energy of KCl is −z kJ/mol, then the heat of solution of KCl is :
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