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Mdcat-past-papers - SZABMU - Chemistry Quiz

Filters: Board: SZABMU | Subject: Chemistry |
61. What is not true about Le-Chatelier's principle?



62. Maximum yield of ammonia can be obtained by:



63. Which of the following factors will disturb the equilibrium in the reaction: 2HI(g) ⇌ H₂(g) + I₂(g); ΔH° = +ve (1) Change in concentration (2) Change in temperature (3) Change in pressure (4) Change in volume



64. Which of the following is not a use of buffer solution?



65. The pH range of human blood is:



66. Oxidation number of an element in free state is:



67. The branch of science which deals with the conversion of electrical energy into chemical energy and vice versa is called:



68. In the reaction: Cr₂O₇²⁻ + 14H⁺ → 2Cr³⁺ + 7H₂O How many electrons are gained or lost by each chromium atom?



69. The oxidation number of oxygen in Na₂O₂ is:



70. The oxidation number of oxygen in NaO₂ is:



71. During electrolysis of concentrated aqueous solution of NaCl, which ion is NOT discharged at cathode?



72. Which statement correctly describes the standard electrode potential?



73. The unit of rate constant is the same as that of the rate of reaction in which of the following order of reaction?



74. If a reaction is first order with respect to a reactant, then the rate will be ___ if concentration of reactant is doubled:



75. The rate constant 'k' in the rate equation is the rate of reaction when molar concentration of each of the reactant is:



76. The rate of reaction:



77. The study of rates of chemical reactions is known as:



78. Decomposition of ammonia on heated tungsten is an example of:



79. What is incorrect about activated complex?



80. Which of the following has the smallest size?



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