Chemistry Entry Test MCQs Unit 7 From Past Papers With Keys

Chemistry Entry Test MCQs from Unit 7: The MDCAT Chemistry Entry Test is a very important exam for people who want to go to medical school. Multiple-choice questions (MCQs) from different chapters of Chemistry are on the test. The questions are meant to test how well the student understands Chemistry’s main ideas and concepts. The Medical Council of Pakistan is in charge of running the test (MDCAT). The following is how the MDCAT Chemistry test is set up: Unit 5 MCQs are also available

There are a total of 100 MCQs on the MDCAT Chemistry test. Part A and Part B are the two parts of the paper. Part A has 50 MCQs, and Part B has the same number. Each section lasts for one hour. On the MDCAT Chemistry test, there are no points taken away for wrong answers. Twice a year, in May and November, people take the MDCAT Chemistry test. The test is given at different places all over Pakistan. Unit 4 MCQs are here

MDCAT Chemistry Entry Test MCQs Past Papers Unit 7

MDCAT Chemistry Entry Test  MCQs|MDCAT Chemistry Entry Test MCQs with Answer|MDCAT Chemistry entry test MCQs chapter-wise |For MDCAT Biology Visit this post. Chapter 3 Chemistry MCQs are here

1. In endothermic reaction AH is taken as (MCAT 2014)
(A) May be any value
(B) Positive
(C) Negative
(D) Zero
2. Whenever a reaction is exothermic, then it means that: (MDCAT 2010)
(A) The heat is transferred from the surroundings to the system
(B) The heat content of the reactant is greater than the products
(C) The heat content of the reactants is less than those of products
(D) None of these
3. Which one of the following processes is exothermic? (D.G. Khan Board. 2010)
(A) Sublimation
(B) Fusion
(C) Respiration
(D) Evaporation
4. The exothermic process is (MCAT 2011)
(A) Evaporation
(B) Sublimation
(C) Respiration
(D) Boiling
5. Which of the following form is an endothermic reaction? MCAT 2009
(A) 2H2(g) + 02(g) —> 2H2O(1)
(B) N2(g) + 3H2(g)—2NH3(g)
(C) C(s)+ O2 (g)—>Co2(g)
(D) None of these

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6. A spontaneous process is—-MCAT 2010
(A) Unidirectional and irreversible
(B) Unidirectional and a real process
(C) Irreversible and a real process
(D) All of the above
7. The standard enthalpy of solution of NH4-Cl is—–Kjmol-1 MCAT 2010
(A) +16.2
(B) -25.0
(C) +4.98
(D) +26.0
8. Reactants have high energy than products in MCAT 2013
(A) Endothermic reactions
(B) Exothermic reactions
(C) Photochemical reactions
(D) Non-spontaneous
9. Reaction of water with quick lime results in the rise of temperature. Indicate the nature of the reaction MDCAT 2018
(A) non-spontaneous reaction
(B) Third Order reaction
(C) Endothermic reaction
(D) Exothermic reactions
10. In a bomb calorimeter, the reactions are carried out at a constant. (ECAT, 2010)
(A) Temperature
(B) Pressure
(C) Volume
(D) None of these

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11. Formation of NH3 is an exothermic reaction. However, in Haber’s process temperature used is: (MDCAT, 2010)
(A) 200C
(B) 300C
(C) 400C
(D) 500C
12.1/2 H2 (g) AH = 218 kJmol-l, in this reaction, AH will be called: MCAT 2016
(A) Enthalpy of atomization
(B) Enthalpy of decomposition
(C) Enthalpy of formation
(D) Enthalpy of the dissociation
13. The enthalpy change when one mole of a substance is completely burnt in excess of oxygen is called: (MDCAT 2007)
(A) Enthalpy of neutralization
(B) Enthalpy of combustion
(C) Enthalpy of atomization
(D) Enthalpy of formation
14. The enthalpies of all elements in their standard states are: (MDCAT, 2010)
(A) Always negative
(B) Always positive
(C) Unity
(D) Zero
15. For the reaction NaOH + NaCl +H20 the change in enthalpy is called (MCAT, 2012, 2018)
(D) Heat of combustion
(B) Heat of formation
(C) Heat of neutralization
(A) Heat of reaction
16. The pressure of oxygen inside the bomb calorimeter is (Faisalabad Board. 2016)
(A) I00 atm
(B) 50 atm
(C) 25 atm
(D) 20 atm
17. Which of the following enthalpy change is always exothermic? MCAT 2017
(A) Enthalpy of combustion
(B) Enthalpy of formation
(C) Enthalpy of atomization
(D) Enthalpy of solution

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