Ilide Board Concepts Answer Key PDF

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This document appears to be a set of chemistry questions and answers, likely from a past exam paper. It covers topics such as bonding, organic chemistry, and other relevant concepts.

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Board Concepts Answer Key Day 1 1. The theory of resonance was developed by ________ in order to further explain the bonding structures of molecules or ions not covered by Lewis Octet Rule A. Hans Fischer B. Linus Pauling C. Victor Grignard...

Board Concepts Answer Key Day 1 1. The theory of resonance was developed by ________ in order to further explain the bonding structures of molecules or ions not covered by Lewis Octet Rule A. Hans Fischer B. Linus Pauling C. Victor Grignard D. Paul Sabatier 2. Generation of glucose from certain non-carbohydrate carbon precursors during prolonge d starvation. A. Glycogenolysis B. Glycolysis C. Gluconeogenesis D. Glycogenesis 3. It is used as a precursor of vinyl chloride A. Ethylene B. Ethene C. Propane D. Propylene 4. A diamond structure is due to A. Ionic bonding B. Hydrogen bonding C. Strong covalent bonding D. Metallic bonding 5. Produced when hydrogen is removed from a benzene ring A. Aryl B. Phenyl C. Hydroxyl D. Benzyl 6. Produced when hydrogen is removed from an aromatic functional group A. Aryl B. Phenyl C. Hydroxyl D. Benzyl 7. Range of electronegativity A. -1 to 1 B. 2 to 5 C. 0 to 4 D. 1 to 5 8. Magnesium reacts with ____ __ to produce magnesium nitride and hydrogen gas A. Nitrogen B. Nitrogen dioxide C. Ammonium D. Ammonia 9. Most common coagulant used for water purification A. Ferric Sulphate B. Ferric Chloride C. Potash Alum D. Liquid Alum 10. What does MSDS stand for A. Material Specification B. Material Safety Data Sheet Data Sheet C. Machine Safety Data Slip D. Machine Safety Data Sheet 11. Sigma bonds per carbo n in benzene A. 1 B. 2 C. 3 D. 4 12. Predominant organic a cid found in apples A. Malic acid B. Oxalic acid C. Tartaric acid D. Benzoic acid 13. Number of C atoms in olvanil A. 23 B. 26 C. 29 D. 32 14. The number of amino a cids in human protein A. 25 B. 23 C. 20 D. 19 15. Reaction wherein unsa turated bonds are cleaved with ozone A. Ozonalysis B. Ozotropic reactions C. Ozonolysis D. Ozeotropic reactions 16. Method for sequencing of amino acids by sequentially removing one residue at a time from the amino end of a peptide A. Hydrolysis B. Mass Spectrometry C. Edman Degradation D. Beckman-Spinco Analysis 17. Ratio of the mass of the sun to the earth A. 3,000 B. 33,000 C. 333,000 D. 3,333,000 18. Ratio of the diameter of the sun to the earth A. 107 B. 108 C. 109 D. 110 19. Formula of red lead A. Pb2O B. PbO C. Pb3O4 D. Pb2O5 20. Discovered Deuterium A. Robert Boyle B. Pierre Janssen C. Henry Cavendish D. Harold Urey 21. Alar A. C6H12N2O3 B. C16H20NO3 C. C7H24N3Cl D. C10H12NOCl 22. When Ca undergoes th e flame test, what color does it 2+ produce? A. Crimson red B. Yellowish green C. Purple/lilac D. Brick red 23. Organic reaction that converts an alcohol into an alkyl chloride A. Baeyer B. Appel C. Finkelstein D. Bellstein 24. Chemical formula of R ochelle’s Salt A. KNaC4H4O6*4H2O B. Na2C5H7O2*2H2O C. Pb2CO3Cl2 D. PbC2O4Cl 25. Major component of le cithin A. Phosphatidine B. Phosphatidylcholine C. Sterols D. Phosphatidylethanolamine 26. Invented vulcanized r ubber A. Edouard Michelin B. John Boyd Dunlop C. Charles Goodyear D. William F. O’Neil 27. Chemical formula for angelic acid A. C3H6OCl B. C2H3N2Cl C. C6H10Cl2 D. C5H8O2 28. Polymer found in bull etproof vest A. PVC B. Nylon C. Linear Polyethylene D. Teflon 29. All of these are indi cators for EDTA except: A. Eriochrome Black T B. Solochrome C. Muroxide D. Calmagite 30. Taurine A. C3H9NO2 B. C4H8SO3 C. C2H7NO3S D. C5H10NO2S 31. Distance of earth to farthest galaxy in billion light years A. 12 B. 14 C. 13 D. 15 32. Arrange the following compounds in increasing acid strength: I. Phenol II. Alcohol III. Carboxylic acid A. II-I-III B. III-I-II C. I-II-III D. II-III-I 33. The difference betwee n the actual property value of a solution and the value it would have as an ideal solution at the same T and P and co mposition is called A. Residual B. Excess C. Partial D. Gibbs free energy 34. Formula of 11-tetrade cenyl acetate A. C15H34O B. C15H30O C. C16H30O2 D. C16H34O2 35. Oxidation number of C r in CrF63+ A. 3 B. 0 C. -3 D. -6 36. Isoelectronic with Xe A. Mg2+ B. S2- C. K+ D. I- 37. Match the following e lement to the correct application I. Co-60 A. Kidney scan II. Th-201 B. Cancer therapy III. Tritium C. Measure H2O content in body IV. Hg-197 D. Heart scan A. IA-IIB-IIIC-IVD B. IVB-IC-IIA-IIID C. IB-IVA-IID-IIIC D. IIIA-IIC-ID-IVB 38. Number of double bonds in geraniol A. 3 B. 2 C. 1 D. 0 39. Also known as saturat ed aliphatic hydrocarbon A. Olefin B. Paraffin C. Alkene D. Arene 40. What happens to DU wh en the work is done by the system during the adiabati c expansion of ideal gas? A. Increases B. Decreases C. Stays the same D. Not enough information 41. Common name of calciu m carbonate A. Quartz B. Dolomite C. Chalk D. Cream of tartar 42. Chemical formula of l aughing gas A. NO B. NO2 C. N2O D. NO3 43. Which is not a main c omponent of cement? A. Fe B. Ni C. Si D. Al 44. Nearest layer of atmo sphere from earth’s surface A. Troposphere B. Stratosphere C. Mesosphere D. Thermosphere 45. Scientist who won the Nobel Peace Prize for nuclear fission A. Otto Stern B. Otto Hahn C. Enrico Fermi D. Paul Karrer 46. Which of the followin g statements is true based on Classical Physics & Quantu m Theory A. Robert Bunsen proposed B. Quantum theory places no that energy like matter is limitation on the amount of energy that a system discontinuous may possess C. The energy of a quantum of D. None of the choices electromagnetic radiation is proportional to the frequency of the radiation 47. Person behind carbon dating method A. Gilbert Plass B. Willard Libby C. Charles Keeling D. Wallace Broecker 48. Where is the ozone la yer found? A. Troposphere B. Stratosphere C. Mesosphere D. Thermosphere 49. Solid layer of earth’ s crust A. Mantle B. Asthenosphere C. Lithosphere D. Outer core 50. First natural dye to be produced synthetically A. Melanin B. Carotenoid C. Alizarin D. Indigofera 51. Internal energy is co mposed of all energy in the system except: A. Enthalpy B. Free energy C. Heat of fusion D. Kinetic and potential energy 52. Known for the discove ry of spontaneous radioactivity A. Ernest Rutherford B. Marie Curie C. Henri Becquerel D. Wilhelm Roentgen 53. Who coined the term “ radioactivity”? A. Ernest Rutherford B. Marie Curie C. Henri Becquerel D. Wilhelm Roentgen 54. Discovered the elemen ts Polonium and Radium A. Ernest Rutherford B. Marie Curie C. Henri Becquerel D. Wilhelm Roentgen 55. The atomic mass unit (amu) is equal to ______ of the mass of an atom of Carbon12 A. One-half B. One-fourth C. One-sixth D. One-twelvth 56. This law explains ele ctromagnetic induction as the interaction of a magnetic field with an electric circuit to produce electromotive f orce (emf) A. Maxwell’s Law B. Kirchoff’s Law C. Faraday’s Law D. Boltzmann’s Law 57. Also known as olefins A. Alkanes B. Alkenes C. Alkynes D. Aromatics 58. Component of chili pe ppers responsible for the burning sensation A. Theobromine B. Quinine C. Capsaicin D. Castoreum 59. Another name for bulk temperature A. Surface temperature B. Adiabatic temperature C. Steady state temperature D. Mixing-cup temperature 60. Wohler’s experiment t hat destroyed the Vital Force Theory A. Using electrolysis to B. Heating of NH4Cl with AgCN isolate elemental K, Na, to form urea and Ca C. Separating a racemic D. Mixing Xe and PtF6 leading mixture of two enantiomers to the first synthesis of by sorting individual a noble gas compound crystals 61. Set of processes perf ormed by living beings that allow them to interchange matter and energy with their environment A. Metabolism B. Cytosis C. Glycolysis D. Anabolism 62. Alfred Baeyer produce d this compound by combining malonic acid and urea A. Thioesteric acid B. Butyric acid C. Valeric acid D. Barbituric acid 63. Properties of dodecan e: I. Is it soluble in wate r? II. Is it soluble in hexa ne? III. Is it combustible? IV. Is it solid, liquid, or gas at room temperature & atmospheric condition s? V. Is it denser than wat er? A. No, yes, yes, liquid, more B. Yes, yes, yes, liquid, dense more dense C. Yes, yes, yes, liquid, D. No, yes, yes, liquid, less less dense dense 64. The only natural amin o acid that has no chiral center is A. Cysteine B. Tryptophan C. Glycine D. Proline 65. When a foreign substa nce is injected in a rabbit, how long does it take to find antibodies against the foreign substance in the rabbit se rum? A. Less than 1 week B. Exactly 1 week C. 1 to 2 weeks D. More than 2 weeks 66. Which amino acid has the highest percentage nitrogen? A. Glutamic acid B. Arginine C. Tyrosine D. Phenylalanine 67. Above the stratospher e, the concentration of ozone and other gases is low, an d the temperature decreases with increasing altitude A. Troposphere B. Ionosphere C. Mesosphere D. Stratosphere Day 2 1. Equivalent diameter is A. Diameter of circular duct B. Diameter of rectangular that gives same pressure duct that gives same drop as rectangular duct pressure drop as circular duct C. Diameter of rectangular D. Diameter of circular duct duct that gives same that gives same pressure pressure drop as square drop as square duct duct 2. Control system that minimizes upset A. Cascade B. SCADA C. DCS D. Networking 3. Plasticizer used in PVC A. Phthalate B. Polyethylene C. Glycerides D. Polyhydric alcohols 4. Which of the following one of the drying substances in the dehydration and sweetening of natural gas? A. Methanol B. Polystyrene C. Monoethanolamine D. Sodium thiocyanate 5. It is the primary consider ation in practical automation A. Complexity of system B. Configuring devices as fail-safe C. Delivering high level of D. Cost-benefit analysis of automation automation 6. Catalyst used in Haber-Bos ch process A. Platinum B. Palladium C. Chromium D. Iron 7. Portland cement with trica lcium silicate & dicalcium silicate A. Sulfate-resistant B. Low-heat C. Ordinary D. Modified 8. Perfume fixative extracted from deer glands A. Lanolin B. Ozocerite C. Musk D. Ambergis 9. A good general reference o n the art of problem solving A. Berkeley B. Zurich C. Polya D. Weber 10. Design within interna l constraints A. Best B. Possible C. Probable D. Plausible 11. Production of sodium sulfate A. Hargreave’s Process B. Burton Process C. Kolbe-Schmitt Process D. Cumene Process 12. Step by step method o f cost analysis A. Cost estimation B. Factorial C. CBA D. One-on-one 13. Industrial process pr oduces parisons A. Blown glass B. Ceramics C. Semiconductors D. Metal sheet 14. Yamatake system A. Arataki B. Method C. C-Python D. Azbil 15. Pioneered zeolites fo r water softening A. Reinhold Leipzig B. Petro Bordeaux C. Robert Gans D. John Lowe Graz 16. Which process is used to extract and purify nickel A. Dow B. Bayer C. Mond D. Ostwald 17. Vanilla comes from th e immature fruit of a plant with the scientific name Vanill a Planifolia. What kind of plant is this? A. Herb B. Flower C. Orchid D. Climber 18. Largest chemical prod ucer in the world A. Air Liquide B. BASF C. Dow D. Formosa Plastics 19. What chemical known a s oxygen scavenger is used for the complete deoxygenation of boiler feed water to minimize corrosion in high -pressure, high-temperature boiler? A. Sodium sulfite B. Sodium sulfate C. Sodium carbonate D. Sodium bicarbonate 20. What is the importanc e of sodium hexametaphosphate conditioning of pressure b oiling water? A. To prevent rust B. To protect from corrosion C. To maintain proper D. To avoid scaling temperature 21. Happens in thermocoup le when temperature difference between two dissimilar ele ctric conductors produces an electromotive force A. Maxwell effect B. Rosin coupling C. Sperling attraction D. Seebeck effect 22. Which of the followin g equipment is considered proprietary A. Reactors B. Dryers C. Heat Exchangers D. Distillation columns 23. Electronic noise insi de electric conductor A. Seeberg B. Rammler C. Johnson D. Gaudin 24. What is the purpose o f sizing in the manufacture of paper A. Remove lignin without B. Provide water resistance & losing fiber strength prevent paper from blurring with ink C. Enhance material density D. Formation of fibers on a thin screen and flattening into a sheet 25. Based on the rheologi cal behavior of fluids, what is the term for some fluids t hat do not flow at all until a threshold stress level is attained? A. Pseudoplastic B. Newtonian fluid C. Dilatant D. Bingham plastic 26. Also known as design factor A. Corrosion factor B. Safety factor C. Optimum factor D. Maximum factor 27. The work done in a fr ee expansion process is A. Minimum B. Maximum C. Zero D. Infinity 28. In feedback control s ystem for temperature control, a thermocouple measures the temperature, and the output is fed to a controller. What results when one of the components known as a comp arator compares a measure temperature value with des ired value or set point? A. Error B. Deviation C. Oscillation D. Feedback 29. The function of tran sducer is A. Modify the input signal B. Convert the primary signal into more useful quantity C. Amplify the input signal D. Codify or decodify the input signal 30. What is the simplest type of control commonly expressed as having on/off position action? A. Bang-Bang B. Input-Output C. Manual D. Integral 31. What is the measure o f wall thickness of tubing considering that there is no clear-cut distinction between pipe and tubing? A. Nominal pipe size B. Schedule number C. Birmingham wire gauge D. Nominal diameter 32. A disturbance which i s externally applied to the system A. Impedance B. Perturbations C. Output disturbance D. Oscillation 33. A substance which can be readily converted into dye or other colored compound A. Chromogen B. Goitrogen C. Anlagen D. Acrogen 34. A product of alumina and silica at high temperature A. Bentonite B. Illite C. Kaolinite D. Cement 35. What optimization tec hnique is commonly used in chemical process project d esign where the problem is to decide the optimum utiliza tion of resources? A. Linear programming B. Dynamic programming C. Cost-value D. Step-wise 36. Primary organic compo nent of oil shale A. Bitumen B. Peat C. Kerogen D. Graphite 37. Protective response which is initiated upon detection of a process hazard A. High-integrity protective B. Interlock system C. EEMUA 191 D. Human interface 38. Heat capacity is defi ned as C=dQ/dT. What is the difficulty about the relat ionship of C to Q which are supposedly state functions ? A. Small temperature changes B. Not an intensive property have smaller capacities C. It is a process dependent D. It presents heat as energy quantity in transit 39. ______ defined design as conversion of an ill-defined requirement into satisfied customer A. Casey B. Chaddock C. Polya D. Chittenden 40. Gasification of coal to produce substitute natural gas, at what reaction zone is CH4 produced when some of C is hydrogenated? A. Pyrolysis B. Hydro-gasification C. Gasification D. Hydrotreating 41. Who describe temperat ure as “thermal state of a body considered with its abilit y to communicate heat to other bodies”? A. Joule B. Van Ness C. Boltzmann D. Maxwell 42. In chemical engineeri ng with regards to reactor design, what is the concer n referred to with the question: “what changes can we expec t to occur?” A. Flow rate B. Reaction rate C. Thermodynamics D. Free energy 43. Example of local equi librium A. Shock wave B. Boiling steam C. Molten polymer D. Explosion 44. Causes feedback on te lephone during rainy days A. Feedback B. Error C. Oscillation D. Deviation 45. Skirt supports are mo st suitable for: A. Horizontal vessels B. Thick-walled vertical vessels C. Thin spherical vessels D. Tall vertical vessels 46. For a zero-order reac tion, the ratio of the volume of a backmix reactor to the v olume of a plugflow reactor, for the same reactant conversi on and conditions, is: A. 0 B. Between 0 to 1 C. Greater than 1 D. 1 47. The primary consideration in the selection of a dryer is: A. Bulk density of the B. Whether the drying process product is batch or continuous C. Physical properties of the D. Site of the proposed material to be dried installation 48. Which of the followin g processes is not exothermic? A. Catalytic cracking B. Methanol synthesis C. Oxidation of sulfur D. Ammonia synthesis 49. When designing a reac tor what must be considered in searching for optimum effi ciency? A. Cost of reactor B. Alternatives for the process C. Economics of overall D. Treatment cost of process materials & waste 50. Industry itself is a power plant A. Petroleum B. Wastewater C. Battery D. Sugar 51. Minimum temperature a t which vapor above liquid will continue to burn once igni ted A. Flash point B. Fire point C. Bubble point D. Auto ignition point 52. Actual work/theoretic al work A. Turbine B. Pump C. Engine D. Carnot 53. It is the most effici ent process for hydrogen gas production which emits les s amount of carbon A. Electrolysis B. Steam reforming C. Coal gasification D. Step-wise 54. Temperature in which reactor condition cannot be controlled A. Equilibrium temperature B. Runaway temperature C. Fire point D. Critical point 55. What happens to a par ticle at the grinding limit A. Large change in particle B. No change in particle size size C. Clumping of particles D. Breakdown 56. It has no concise the rmodynamic definition and cannot be measure directly A. Internal energy B. Temperature C. Pressure D. Volume 57. Boudouard process A. C + O2 -> CO2 B. CO + H2O -> CO2 + H2 C. C + CO2 -> 2CO D. 2H2O -> 2H2 + O2 58. In the cubic equation of state, what is the assumption for the middle root? A. Large significance B. Standard significance C. No significance D. Depends on system 59. Lee/Kesler correlation is only applicable for the following compounds A. Polar only B. Non-polar only C. Polar and slightly polar D. Non-polar and slightly polar 60. Formation of nuclei d uring crystallization A. Crystal growth B. Primary nucleation C. Secondary nucleation D. Clustering 61. Though it may be diff icult to determine the dominant basic pattern in the appli ed force to break a particle, what pattern is brought ab out by disintegrating the particle by 2 rigid forces ? A. Attrition B. Compression C. Abrasion D. Impact 62. In the use of refract ory materials, a mixture of silica & alumina form a eu tectic at what condition? A. 96.0% SiO2 @ 1900oC B. 97.5% SiO2 @ 1355oC C. 92.5% SiO2 @ 1650oC D. 94.5% SiO2 @ 1545oC 63. Which of the followin g describes a screw conveyor? A. Transfer dry bulk B. The mechanism of this materials from one area to system consists of a another through air helical blade that moves pressure liquid or granular materials, usually within a tube C. These systems move D. Discs are evenly spaced material through a sealed along this rope, and they tube with the help of a move at very high speeds flexible, coated stainless that create an airstream steel drag cable 64. Product of distillati on of coal tar A. Propane B. Carbon C. Ethanol D. Phenol 65. Design within externa l constraints A. Possible B. Plausible C. Probable D. Best 66. Likely candidates A. Possible B. Plausible C. Probable D. Best 67. Optimum design A. Possible B. Plausible C. Probable D. Best 68. Another name for eart h wax A. Ambergis B. Musk C. Ozocerite D. Lanolin 69. Used in ultrasonic flow meters A. Doppler B. Johnson C. Hertz D. Prandtl 70. Which is not a pestic ide? A. Heptachlor B. Hexachlorobenzene C. Chlordane D. Polychlorinated biphenyl 71. Choose the common met hod in the removal of fine particles in hot airstream in cement production A. ESP B. Buoyancy C. Venturi scrubber D. Cyclone separator 72. Fugacity and pressure are numerically equal when a gas is A. In standard state B. At high pressure C. At high temperature D. Ideal gas 73. Measure of a material ’s ability to radiate absorbed energy A. Emissivity B. Absorptivity C. Transmissivity D. Heat capacity 74. This phenomenon occur s in a fluid flow system when the local static pressure drops below the vapor pressure of the liquid at the exist ing temperature, resulting to damage to pumps and contro l valves from the formation of “bubbles” or voids A. Choked flow B. Cavitation C. Flashing D. Water hammering 75. In agitation, which a mong the following will not prevent swirling or format ion of a vortex? A. Increasing the distance of B. Mounting the mixer in an the impeller from the angular off-center base of the tank position C. Installing baffles in the D. Offsetting the mixer tank horizontally on the xaxis 76. It is a membrane sepa ration process where a component from a heated liquid phase permeates through the membrane and is removed under low p ressure A. Reverse osmosis B. Ion exchange C. Electrodialysis D. Pervaporation 77. In a packed column, c hanneling is prevented by which of the following equipment ? A. Nozzles B. Raschig rings C. Column sump D. Liquid distributor 78. It is the first stage in the anatomy of a chemical manufacturing plant A. Product separation B. Feed preparation C. Reactor D. Raw material storage 79. Which among the following is most suitable for very high-pressure gas phase reactions? A. Tubular flow reactor B. Batch reactor C. Fluidized bed reactor D. Stirred tank reactor Day 3 1. Chairperson of PRC A. Jose Y. Cueto, Jr. B. Charito Zamora C. Erwin M. Enad D. Aristogeron T. Gesmundo 2. Chairperson of chemical en gineering board A. Cezar De la Cruz B. Shirlyn Chua-Reyes C. Ofelia Bulaong D. Cyd Aguilera 3. What is the acid test rati o A. Ratio of current assets B. Ratio of current assets (excluding inventory) to (including inventory) to total current liabilities total current liabilities C. Ratio of total current D. Ratio of total current liabilities to current liabilities to current assets (excluding assets (including inventory) inventory) 4. It is used for comparing w orth from different years A. Present worth cost method B. Annual worth analysis C. Capitalized analysis D. Payback period method 5. In Philippine Clean Water Act of 2004, it is defined as layer of water-bearing roc k located underground that transmits water in suffici ent quantity to supply pumping wells or natural spring A. Aquifer B. Surface water C. Groundwater D. Reservoir 6. A parabola is the set of a ll points equidistant from a point called the A. Focus B. Directrix C. Latus rectum D. Vertex 7. When the discriminant is g reater than zero, the roots are: A. Real and equal B. Real and unequal C. Imaginary and equal D. Imaginary and unequal 8. This law states that “The State shall recognize and protect the rights of the indigenous cultural communities to their ancestral lands a s provided for by the Constitution” A. Ecological Solid Waste B. Philippine Clean Water Act Management Act C. Toxic Substances, D. Philippine Mining Act Hazardous and Nuclear Waste Control Act 9. Lowest possible probabilit y A. Less than zero B. 0 C. In between 0 and 1 D. 1 10. A type of rosette com posed of three electrical resistance strain gages ma king angles of 0o, 60o, and 120o with the x-axis A. Star B. Hexagonal C. Delta D. Rectangular 11. A ______ is one who, for a given period of time, is being observed and evaluat ed to determine whether or not he is qualified for perman ent employment A. Term employee B. Seasonal employee C. Casual employee D. Probationary employee 12. A simple type of stre ss occurs when the material body is under equal compression or tension in all directions A. Uniaxial normal stress B. Isotropic stress C. Shear stress D. Cylinder stress

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