20080 marks22 questions
10 of its 22 questions are here. The rest have a figure or are still being checked, so for now they're only in the official PDF.
Sit this paper against the clock, marked by its official answers, or get a new paper like it. Sign in first; practising is part of Pro.
Source: IIT-JEE 2008, Paper 2, Chemistry, published by JEE (Advanced). The official PDF
Among the following, the coloured compound is
Both [Ni(CO)₄] and [Ni(CN)₄]²⁻ are diamagnetic. The hybridisations of nickel in these complexes, respectively, are
The IUPAC name of [Ni(NH₃)₄][NiCl₄] is
Electrolysis of dilute aqueous NaCl solution was carried out by passing 10 milli ampere current. The time required to liberate 0.01 mol of H₂ gas at the cathode is (1 Faraday = 96500 C mol⁻¹)
Among the following, the surfactant that will form micelles in aqueous solution at the lowest molar concentration at ambient conditions is
Solubility product constants (Ksp) of salts of types MX, MX₂ and M₃X at temperature ‘T’ are 4.0 × 10⁻⁸, 3.2 × 10⁻¹⁴ and 2.7 × 10⁻¹⁵, respectively. Solubilities (mol dm⁻³) of the salts at temperature ‘T’ are in the order
STATEMENT-1: Aniline on reaction with NaNO₂/HCl at 0 °C followed by coupling with β-naphthol gives a dark blue coloured precipitate. and STATEMENT-2: The colour of the compound formed in the reaction of aniline with NaNO₂/HCl at 0 °C followed by coupling with β-naphthol is due to the extended conjugation.
STATEMENT-1: [Fe(H₂O)₅NO]SO₄ is paramagnetic. and STATEMENT-2: The Fe in [Fe(H₂O)₅NO]SO₄ has three unpaired electrons.
STATEMENT-1: The geometrical isomers of the complex [M(NH₃)₄Cl₂] are optically inactive. and STATEMENT-2: Both geometrical isomers of the complex [M(NH₃)₄Cl₂] possess axis of symmetry.
STATEMENT-1: There is a natural asymmetry between converting work to heat and converting heat to work. and STATEMENT-2: No process is possible in which the sole result is the absorption of heat from a reservoir and its complete conversion into work.