Tag: GATE Life Science Previous Year Papers with Solutions

Consider the following SN2 reaction of optically pure 1-chloro-3-ethylcyclopentane (X).H3CH2C–(cyclopentane ring)–Cl  + OH− → YX Q.22 The structure of Y in the above reaction is (A) H3CH2C–(cyclopentane)–H / OH (B) […]

Q.21 The rate of a chemical reaction is tripled when the temperature of the reaction is increased from 298 K to 308 K. The activation energy (in kcal mol−1) up […]

Q.20 Iodine forms an anionic species Q in aqueous solution of iodide (I−). The number of lone pair(s) of electrons on the central atom of Q is __________. Iodine forms […]

Q.19 The major product obtained in the following reaction is Introduction (SEO Optimized) Questions involving alkyl halides reacting with strong bases like sodium ethoxide (NaOEt) are very common in JEE […]

Q.18 Identify the CORRECT product in the following reaction: Introduction (SEO Optimized) Questions based on the Diels–Alder reaction are extremely common in JEE Advanced, NEET, and other competitive organic chemistry […]

Q.17 The solubility product (Ksp) of Ca3(PO4)2 is 1.3 × 10−32. In a 0.02 M solution of Ca(NO3)2, the solubility of Ca3(PO4)2 (in units of M) is (A) 6.5 × […]

Q.16 In NaCl crystal, the arrangement and coordination number of the ions are (A) fcc and 6 (B) fcc and 4 (C) hcp and 6 (D) hcp and 4 NaCl […]

Q.15 When dissolved in water, the number of H+ ions released from a molecule of H3BO3 is __________. SEO-Optimized Introduction Acid strength and the number of hydrogen ions released in […]

Q.13 The given equation (d(ΔH)/dT)p = ΔCp where H, T and Cp are the enthalpy, temperature and heat capacity at constant pressure, respectively, is called (A) Clausius–Clapeyron equation (B) Hess’s […]