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Mdcat-past-papers - NMDCAT Quiz

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221. The study of rates of chemical reactions and the factors that affect the rates of chemical reactions is known as:



222. In endothermic reactions heat is absorbed from:



223. One calorie is equal to:



224. According to Hess's law, which one is a state function?



225. First law of thermodynamics is represented as:



226. The thermal energy at constant pressure is called:



227. Born–Haber cycle is used to determine the lattice energies of:



228. Unit of equilibrium constant for the reversible reaction H₂ + I₂ ⇌ 2HI is:



229. Which of the following reactions has Kp > Kc?



230. Purification of NaCl by passing HCl gas into its saturated solution demonstrates:



231. The oxidation state of sulphur in (S2O3)²⁻ is:



232. The common oxidation number of halogens is:



233. During oxidation process, oxidation number of an element:



234. Lower members in electrochemical series cause:



235. Element with highest reduction potential is:



236. Reduction of copper is due to electrode potential of:



237. When the concentration of A(g) doubles, the rate of reaction increases four folds. This means it is a:



238. For which of the following orders of reaction, the rate of reaction is inversely proportional to the concentration?



239. The sum of exponents in the rate equation gives:



240. Which order of reaction obeys the formula t₁⁄₂ = 1/ka?



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