Sindh Agriculture University Tandojam Pre Entry Test Paper 2019/20 21- AIDS is spread by: A. HomosexualityB. Immoral way of life C. Infected needles & syringes D. All of these View Answer Answer : A. Homosexuality Description 22- Geotropism is a tropic movement of plants in response to: A. GravityB. WaterC. LightD. Chemical View Answer Answer : A. Gravity Description 23- Movement of an organism as a whole from place to place is called: A. RespirationB. LocomotionC. TransportationD. Transpiration View Answer Answer : B. Locomotion Description 24- Aquatic arthropods respire through: A. Book lungsB. TracheaC. GillsD. Lungs View Answer Answer : C. Gills Description 25- Fungi grow best in ______ habitat: A. MoistB. DryC. AquaticD. None of these View Answer Answer : A. Moist Description 26- The empirical formula of sulfuric acid is: A. H₂SO₄B. H₂SC. H₂SO₃ D. H₂SO₂ View Answer Answer : A. H₂SO₄ Description 27- The symbol of sodium is: A. PB. KC. ND. Na View Answer Answer : D. Na Description 28- The solubility of a gas in water depends upon: A. Nature of the gas B. TemperatureC. Pressure of the gas D. All of these View Answer Answer : D. All of these Description 29- Which one of these is weakest? A. Covalent bond B. Ionic bond C. Van der Waal’s forcesD. Metallic bond View Answer Answer : C. Van der Waal's forces Description 30- An endothermic reaction is one in which: A. Heat is evolved B. Heat is absorbedC. Heat is converted into electricity D. Heat is converted into mechanical work View Answer Answer : B. Heat is absorbed Description 31- The Molarity of pure water is: A. 55.5B. 50.0C. 100.0D. 18.0 View Answer Answer : A. 55.5 Description 32- Family B elements are commonly called as: A. Normal elements B. Non-metal elements C. Transition elementsD. Nobel gases View Answer Answer : C. Transition elements Description 33- Which of the following is an inert gas? A. ArgonB. H₂ C. O₂ D. N₂ View Answer Answer : A. Argon Description 34- The atomic mass of oxygen is: A. FourB. EightC. SixteenD. Thirty two View Answer Answer : C. Sixteen Description 35- Absolute temperature is the temperature at which: A. Volume becomes zero B. All molecular motion ceasesC. Mass becomes zero D. None of these View Answer Answer : C. All molecular motion ceases Description 36- Organic compounds are soluble in all except: A. PetroleumB. BenzeneC. WaterD. Ether View Answer Answer : C. Water Description 37- Which of the following is a synthetic fertilizer? A. CompostB. DAPC. Cattle manureD. Poultry manure View Answer Answer : B. DAP Description 38- Which one of the following is mainly responsible for depletion of ozone layer? A. MethaneB. Carbon dioxide C. Water vapor D. Chlorofluorocarbon View Answer Answer : D. Chlorofluorocarbon Description 39- Which of the following is mono-atomic? A. NeonB. NitrogenC. FluorineD. Oxygen View Answer Answer : A. Neon Description 40- ______ liquid has low viscosity. A. WaterB. GlycerineC. Ethyl alcohol D. Acetone View Answer Answer : D. Acetone Description 1 2 3 4 5
