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Q.18 The CORRECT statement(s) about [Ni(CN)4]2−, [Ni(CO)4] and [NiCl4]2− is(are)(Given: Atomic number of Ni: 28)(A) Both [Ni(CN)4]2− and [Ni(CO)4] are square planar complexes.(B) [Ni(CN)4]2− is diamagnetic and [NiCl4]2− is paramagnetic.(C) […]

Q. 17 The CORRECT statement(s) regarding the given molecules is(are)(A) Both I and II are achiral molecules.(B) Both II and III are chiral molecules.(C) IV is a chiral molecule.(D) Both […]

Q. 16 The isothermal expansion of one mole of an ideal gas from 𝑉𝑖 to 𝑉𝑓 at temperature,T occurs in two ways.Path I: a reversible isothermal expansion;Path II: free expansion […]

Q. 15 The temperature dependence of reaction rates is generally given by the Arrheniusequation. A plot of ln 𝑘𝑟 against 1/𝑇 is a straight line from which the pre–exponential factor […]

Q. 14 The standard enthalpy of the reaction,C (graphite) + H2O (g) → CO (g) + H2 (g) is found to be +131.3 kJ mol–1and the ∆𝑓𝐻0 value for CO […]

Q. 13 The bond order in 𝑁22− species is(A) 2(B) 2.5(C) 3(D) 3.5 The bond order of N22− is 2, so the correct option is (A) 2. Introduction The bond […]

Q. 12 The CORRECT order of boiling points for the hydrogen halides is(A) HF > HI > HBr > HCl(B) HF > HCl > HBr > HI(C) HI > HBr […]

Q.11 The rate of solvolysis for the following tertiary halides in 80% aqueous ethanol at25 °C follows the order(A) I < II < III(B) II < III < I(C) III […]

Q.10 Three villages P, Q, and R are located in such a way that the distance PQ = 13 km,QR = 14 km, and RP = 15 km, as shown […]

Q.9 A business person buys potatoes of two different varieties P and Q, mixes them ina certain ratio and sells them at ₹ 192 per kg.The cost of the variety […]