NMDCAT Preparation Chemistry Chapter # 5NMDCAT Practice Test Chapter no 5Attempt your practice test and evaluate the preparation level. This Chapter includes Thermochemistry & Energetics of Chemical Reaction + Electrochemistry 28 Dear Students 25 minutes are given to solve 25 MCQs.Your result will be displayed at the end of the quiz. Created by Umair Ali khan NMDCAT Chemistry Chapter 5 Practice Test 1 / 251) Which of the following is a list of metals in order from strongest to weakest reduction agents? a) Au > Ni > Ag b) Ni > Au > Ag c) Ni > Ag > Au d) Ag > Ni > Au 2 / 252) In an exothermic reaction, the heat content of the a) Products is more than that of reactants b) Reactants is equal to that of products c) Reactants is more than that of products d) Reactants is equal to zero 3 / 253) If 8g of methane is burned in excess of oxygen then the standard enthalpy of combustion is a) Increased to two times b) Reduced to half c) Increased to four times d) Reduced to four times. 4 / 254) The net heat change in a chemical reaction is the same whether it is brought in two or more different ways in one or several steps. It is known as a) Henry’s law b) Joule’s principle c) Hess’s law d) Law of conservation of energy 5 / 255) The condition for standard enthalpy change is a) 760 torr and 300K b) 760 torr and 298K c) 760 torr and 277K d) 760 torr and 0K 6 / 256) C2O42- → 2CO2 + X e-The ‘X’ electrons in the above equation are a) 1 b) 3 c) 2 d) 4 7 / 257) The dissolution of ammonium chloride in water is a/an a) Endothermic process b) Exothermic Process c) Spontaneous Process d) Both A & C 8 / 258) In a reaction, the oxidation number of Cu decreases by 2. This indicates that Cu is a) Reduced b) Neutralized c) Oxidized d) A reducing agent. 9 / 259) The reaction proceeds through the evolution of heat a) Atomization b) Electrolysis c) Hybridization d) Ionization 10 / 2510) Solutions containing chlorate (I) ions are used as household bleaches and disinfectants. These solutions decompose on heating as shown;3ClO- → ClO3- + 2Cl-Which of the following ion will have the highest oxidation state a) ClO- b) ClO2- c) ClO3- d) Cl- 11 / 2511) In an acidic medium, moles of H2O and H+ are added respectively for the given reaction are10 Cl- + 2MnO4- → 2 Mn 2+ + 5 Cl2 a) 4, 4 b) 8, 16 c) 8, 8 d) 4, 8 12 / 2512) Which is used to measure the enthalpy of combustion? a) Glass calorimeter b) Bomb calorimeter c) Copper Calorimeter d) Flame Calorimeter 13 / 2513) Which of the following is an incorrect statement about electrolytic cell? a) Anode is positively charged b) Cathode is negatively charged c) Chemical energy is converted to electrical energy d) Reaction is non-spontaneous in an electrolytic cell 14 / 2514) The amount of heat required to convert one mole of a solid directly into its vapour state at STP is called as a) Standard heat of sublimation b) Heat of reaction c) Molar heat of vaporization d) Heat of neutralization 15 / 2515) O2(g) + 2H2O (l) + X e- → 4OH-The “X” electrons in the above equation are a) 1 b) 2 c) 3 d) 4 16 / 2516) The E°red of an element can be calculated by comparing it with a) New electrode of the same element b) 1M solution of ions of respective elements c) Standard Hydrogen Electrode d) 2M solution of HCl 17 / 2517) The born-Haber cycle is used to determine the lattice energy of a) Covalent Solid b) Ionic Solid c) Molecular Solid d) Metallic Solid 18 / 2518) During balancing of redox equation by oxidation number method the ‘O’ and ‘H’ atoms are balanced by a) Method of difference b) Inspection method c) Ion-electron method d) Spectroscopic method 19 / 2519) Which of the following is incorrect about the enthalpy of neutralization? a) Its maximum value is 57.5 KJ/mol b) It is equal to the enthalpy of the formation of water from ions. c) It is less than 57.5 Kj/mole when one of the acid or base is weaker. d) Energy is absorbed in this process. 20 / 2520) Which of the following value of standard reduction potential suggest that the rate of oxidation is equal to the rate of reduction a) +2.87 V b) 0.00 V c) -3.047 V d) +1.0 V 21 / 2521) Work may be defined in terms of pressure-volume as a) P∆V b) ∆H+V c) F x d d) H + PV 22 / 2522) If the enthalpy of products is more than reactants, the value of ∆H is denoted by a) Positive sign b) Has no sign c) Negative sign d) Nature of reaction 23 / 2523) Consider the following reactionMnO2 + HCl → MnCl2 + H2O + Cl2Which atom undergoes a decrease in oxidation number? a) Chlorine b) Hydrogen c) Oxygen d) Manganese 24 / 2524) Which of the following have high reduction potential than hydrogen a) Mg b) Au c) Sn d) Zn 25 / 2525) The system becomes more stable if it a) Gains energy b) Does not loses energy c) Loses energy d) Have constant energy Write your Name and see your result.My WhatsApp no is +923099164667 for your query. Your score isThe average score is 69%Share to your social media, or take a screenshot Facebook Twitter 0% Restart quiz Exit See review Send feedback FacebooktwitterInstagramShare with othersPages: 1 2 3 4 5 6 7 8 9 10 11 Tags: NMDCAT chemistry chapter 5, NMDCAT Practice test Chapter 5, Online NMDCAT Practice Tests, Online NMDCAT PreparationPost author:Umair Ali khanPost published:August 12, 2022Post category:FSc chemistry / Latest Posts / MDCAT Preparation / Online MCQs (Quiz) Please Share This Useful Info Share this content Opens in a new window Opens in a new window Opens in a new window Opens in a new window Read more articles Previous PostNMDCAT Preparation Chemistry Chapter # 4 Next PostNMDCAT Chemical Bonding Chapter # 6 You Might Also Like Quiz for Class 12 Chapter 1 (Students get outstanding results in exams by solving the MCQs quiz) October 27, 2021 Class 11 Chapter 4 (Solids) Notes July 5, 2023 How to prepare Class 12 S- Block elements (Alkali and alkaline earth metals) November 8, 2021Leave a Reply Cancel replyCommentEnter your name or username to commentEnter your email address to commentEnter your website URL (optional) Save my name, email, and website in this browser for the next time I comment. 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