Sindh MDCAT 2023 Paper 101- Which type of isomerism can propanal and acetone exhibit? A. Functional group isomerismB. Chain isomerismC. Position isomerismD. Metamerism View Answer Answer : A. Functional group isomerism Description 102- The graph of volume versus total pressure at constant temperature is: A. A straight lineB. First a curve and then a straight line C. First a straight line and then a curveD. Non-linear View Answer Answer : D. Non-linear Description 103- 1 atm of nitrogen is at 25°C, its pressure has increased to 2 atm at 50°C. Volume will change from 1 dm³ to: A. 0.542 dm³B. 2 dm³C. 3 dm³D. 4 dm³ View Answer Answer : A. 0.542 dm³ Description 104- Which of the following temperatures is referred to as absolute zero? A. -273.16 °CB. -273.16 KC. 0 °CD. 32 °F View Answer Answer : A. -273.16 °C Description 105- An organic compound has C=40%, H=6.67%, and O=53.3%. What is the empirical formula of the compound? A. CH₃OB. C₂H₃O C. CH₂OD. C₂H₂O View Answer Answer : C. CH₂O Description 106- 7.6 grams of CS₂ is reacted with 12.8g of O₂, CS₂ + 3O₂ → CO₂ + 2SO₂. The limiting reactant is: A. CS₂B. O₂ C. CO₂ D. SO₂ View Answer Answer : A. CS₂ Description 107- Water rises in a capillary tube because of: A. Cohesive force & adhesive forces are the same B. Adhesive forces of molecules exceed cohesive forceC. Cohesive force is greater than adhesive force D. Cohesive force and adhesive force to explain the property in the above question is irrelevant View Answer Answer : B. Adhesive forces of molecules exceed cohesive force Description 108- Which of the following influences the variation of temperature at which boiling of liquid takes place? A. Outside pressureB. Outside temperatureC. Volume of the containerD. Amount of liquid View Answer Answer : A. Outside pressure Description 109- Enzymes show optimum activity between 37°C to 50°C. However, they work: A. Above 50°CB. Below 37°C C. They lose activity permanently above 50°CD. They lose activity permanently below 37°C View Answer Answer : C. They lose activity permanently above 50°C Description 110- Oxidation of secondary propyl alcohol gives: A. AcetoneB. AcetaldehydeC. Ethyl alcoholD. Normal propyl alcohol View Answer Answer : A. Acetone Description 111- Which of the following is an amino acid? A. Benzoic acidB. Palmitic acid C. Aspartic acidD. Aniline View Answer Answer : C. Aspartic acid Description 112- What is the order of reaction if the unit of K is sec⁻¹? A. ZeroB. OneC. TwoD. Three View Answer Answer : B. One Description 113- Which of the following best describes the ionic reactions of inorganic compounds? A. Very slowB. Moderately slowC. Very fastD. Do not occur View Answer Answer : C. Very fast Description 114- Metallic property in a group of P-block elements has a trend: A. DecreasesB. IncreasesC. Remains the sameD. Irregular trend View Answer Answer : A. Decreases Description 115- Superoxide of group IA element (M) has the formula: A. M₂OB. M₂O₃C. MO₂D. M₂O₂ View Answer Answer : C. MO₂ Description 116- Which pair of elements markedly differs from other members of the respective groups? A. Potassium and CalciumB. Sodium and Magnesium C. Caesium and BariumD. Lithium and Beryllium View Answer Answer : D. Lithium and Beryllium Description 117- Which of the following is a covalent crystal? A. NaClB. KIC. MgBr₂ D. Diamond View Answer Answer : D. Diamond Description 118- The nature of attraction which holds molecular crystals is: A. Ionic bondB. Hydrogen bond C. Covalent bondD. Van der Waals force View Answer Answer : D. Van der Waals force Description 119- What is the mathematical statement of the first law of thermodynamics? A. ΔE = q + w B. ΔE = -q – w C. ΔE = -q + w D. ΔE = q – w View Answer Answer : D. ΔE = q - w Description 120- What is ΔH equal to according to the first law of thermodynamics? A. ΔE – PΔVB. ΔE + PΔVC. ΔE – PΔVD. ΔE + PΔV View Answer Answer : B. ΔE + PΔV Description 1 2 3 4 5 6 7 8 9 10
