REACTION KINETICS Q.01: Multiple choice questions. (i) In zero order reaction, the rate is independent of: (a) Temperature of reaction (b) Concentration of reactants (c) Concentration of products (d) None of these ANSWER: (b) Concentration of reactants EXPALNATION: The rate…
ELECTROCHEMISTRY Q.01: Multiple choice questions. For each question there are four possible answers a, b, c and d. Choose the one you consider correct. (i) The cathode reaction in the electrolysis of dil. H2SO4 with Pt electrodes is: (a) Reduction…
SOLUTIONS Q.01: Choose the correct answer for the given ones. (i) Molarity of pure water is: (a) 1 (b) 18 (c) 55.5 (d) 6 ANSWER: (c) 55.5 EXPLANATION: Molarity means number of moles of solute present in liter solution. In…
CHEMICAL EQUILIBRIUM Q.01: Choose the correct answer: (i) For which system does the equilibrium constant, Kc, has units of (conc.)-1? (a) N2 + 3H2 ⇌ 2NH3 (b) H2 + I2 ⇌ 2HI (c) 2NO2 ⇌ N2O4 (d) 2HF ⇌ H2…
THERMOCHEMISTRY Q.01: Choose the correct answer: (i) If an endothermic reaction is allowed to take place very rapidly in the air, the temperature of the surrounding air: (a) Remains constant (b) Increases (c) Decreases (d) Remains unchanged ANSWER: (c)Decreases…
CHEMICAL BONDING Q.01: Select the most suitable answer for the given one. 1) An ionic compound A+B– is most likely to be formed when: (a) The ionization energy of A is high and electron affinity of B is low. (b)…
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Dear Students and Respected Teachers! These are Pakistan Studies-10th up-to-date papers of all Punjab boards. These are six year past papers from 2018-2024. More papers of coming exams will also be added regularly as soon as the exams are conducted.…
Dear Students and Respected Teachers! These are Pakistan Studies-9th up-to-date papers of all Punjab boards from 2018-2024. Some years are missing. More papers of coming exams will also be added regularly as soon as the exams are conducted. Here are…
Dear Students and Respected Teachers! These are Tarjama-tul-Quran-9th up-to-date papers of all Punjab boards. These are six year past papers from 2018-2024. More papers of coming exams will also be added regularly as soon as the exams are conducted. Here…