IIT JAM CY case studies
IIT JAM CY · Put your knowledge to work in context.
JAM Chemistry (CY) is the chemistry subject paper of the Joint Admission Test for Masters, the national entrance test through which qualifying candidates seek admission to postgraduate science programmes at the IITs. For JAM 2026 the organising institute is IIT Bombay, and the test is conducted by IIT Bombay, IISc Bengaluru and six IITs - Delhi, Guwahati, Kanpur, Kharagpur, Madras and Roorkee. The IIT JAM CY case studies are 5 cases and about 2,764 words.
1Osmotic Pressure of a Polymer Fraction: Number-Average Molar Mass and Solvent Quality
A polymer sample is dissolved in toluene at 298 K, and osmotic pressure is measured with a membrane osmometer. The following data are obtained (c in g L^-1, π in Pa): c = 2.00, 4.00, 6.00, 8.00; π = 0.252, 0.512, 0.780, 1.056.
643 words, about 3 min2Nitro versus Nitrito Linkage Isomerism in a Cobalt(III) Complex
A student prepares [Co(NH3)5(NO2)]Cl2 by two routes. Product A is obtained by heating [Co(NH3)5Cl]Cl2 with NaNO2 at 60 °C.
550 words, about 3 min3Competing Protonation Sites in an Allylic Alcohol: Markovnikov versus Rearrangement
3-Methylbut-2-en-1-ol (prenol, 0.50 g) is treated with 48% HBr (1.2 equiv) in dichloromethane. At -20 °C, TLC shows mainly a tertiary bromide P2, plus a minor primary bromide P1 and a trace of diene.
498 words, about 2 min4EDTA Titration of Calcium in Brine: Masking and pH Control
A 50.00 mL brine sample contains approximately 0.020 M Ca2+, 0.010 M Mg2+, 0.0010 M Fe3+, and 0.0015 M Al3+. The analyst titrates with 0.0100 M EDTA at pH 10 using Eriochrome Black T (EBT).
532 words, about 3 min5Saturation Kinetics in the Iodide-Catalyzed Decomposition of H2O2
The rate of O2 evolution from H2O2 decomposition catalyzed by iodide is measured at 25 °C. At low [H2O2], the initial rate is first-order in H2O2; at high [H2O2], the rate becomes zero-order.
541 words, about 3 min