TECHNOLOGICAL INSTITUTE OF THE PHILIPPINES

TECHNOLOGICAL INSTITUTE OF THE PHILIPPINESP CASALFINAL EXAMINATION CHE 442L1

NAME_________________________________ Date : October 19, 2009Subject/Section____CHE 442L1Instructor: ENGR. LORRAINE A. CARRILLO

Directions. Encircle the letter of the correct answer. 1. A suffix which means decomposition has taken place.a. inaseb. lysisc. nistd. none of the given

2. A reaction of an acyl halide with water to yield a carboxylic acid and hydrogen chloride.a. hydrationb. acylationc. esterificationd. none of the given

3. A reaction of an acyl choride with an alcohol to give an ester and hydrogen chloride.a. hydrationb. acylationc. esterificationd. none of the given

4. It is the addition of water to a recatant.a. hydrationb. dehydrationc. hydrolysisd. hydrogenation

5. A substitution reaction wherein the nature of the attacking reagent is best described as having an excess of reactive lone pairs of electron .a. nucleophilicb. electrophilic c. saponificationd. none of the given

6.The production of toluene from n-heptane involves the following reactionsa. hydrogenation, reduction, hydrolysisb. dehydrogenation, reduction, hydrolysisc. hydrogenation, reduction, dehydrogenationd. dehydrogenation, reduction, hydrolysis

7. It tells us how much of the useful product is generated by the processa. conversionb. efficiencyc. yieldd. non eof the given

8. These are impurities in water which are either inorganic or organic in nature, coming from plants and animals (parts), silt.a. dissolved solidsb. dissolved gasesc. microorganismsd. suspended matter

9.These are salts, carbonates, chlorides in the form of Ca, Mg, Na, and K ions in the form of carbonates.a. dissolved solidsb. dissolved gasesc. microorganismsd. suspended matter

9. It obeys Henrys Law when dissolved in water.a. dissolved solidsb. dissolved gasesc. microorganismsd. suspended matter

10. It is the first step in treating water of impurities.a. coagulationb. filtrationc. disinfectiond. screening

11. It was classified as an element in 1777.a. oxygenb. sulfurc, goldd. helium

12. It is another name for elemental sulfur.a. aqua regiab. bronzec. brimstoned. amber

13. Sulfur combines with almost a;; of the elements except inert gases, gold and _______.a. tungstenb. silverc. poloniumd. iridium

14.At normal temperature, sulfur combines with sodium and barium to form this compound.a. oxidesb. sulfidesc. sulfonatesd. none of the given

15.He developed a process for mining sulfura. Lavoisierb. Fraschc.Priestlyd. none of the given

16.It is one of the four basic raw materials of the chmeical industry.a. cementb. gypsumc. limestoned. ores

17. Fuming sulfuric acid has this formula.a. H2SO4.H2Ob. H2SO4.2H2Oc. H2SO4d. H2SO4.SO3

18. The bicarbonates of calcium and magnesium are classified as__________ of water.a. permanent hardnessb. suspended solidsc. temporary hardnessd. non eof the given

19. These are natural sources of air pollution.a. vehicle exhaustb. volcanic eruptionsc. stack gasesd. none of the given

20.Acidic hydrogen (H+) is attached to an oxygen.a. binary acidsb. oxy acidsc. acidsd. none of the given

21. They are plastic materials used in making pottery.a. stonewareb. kaolinc. clayd. none of the given

22.It is a highly refractory white clay used for making porcelain.a. stonewareb. kaolinc. clayd. none of the given

23. They are extremely fine clay of volcanic dust origin.a. stonewareb. kaolinc. bentonited. ball

24. It is the third common component in white ware ceramic production.a. pozzolanb. gypsumc. limestoned. feldspar

25. These are materials composed of limestone.a. argillaceousb. calcareousc. gypsumd. none of the given

26. These are materials rich in clay.a. argillaceousb. calcareousc. gypsumd. none of the given

27. It is an organic substance which binds the cellulose fiber forming the chief part of woody tissues.a. chlorophyllb. ligninc. calcium carbonated. none of the given

28. It is one of the process in the production of paper rendering the paper whiter.a. chlorinationb. caustic extractionc. bleachingd. none of the given

29.It is usually the first step in the recycling of paper.a. pulpingb. deinkingc. bleachingd. none of the given

30.It is a substance that acts as binding agent for materials from construction.a. gypsumb. clinkerc. cementd. portland

31. It is usually done to reduce the size of the limestone from the quarry.a. pulpingb. communitionc. crushingd. none of the given

32. It is produced after the limestone, silica and shale are burned in the rotating kilns.a. gypsumb. mortarc. pozzoland. clinker

33. These are equipment are employed to catch the cement dust escaping to the atmosphere.a. stacksb. electrostatic precipitatorsc. kilnsd. non eof the given

34. These are types of clays utilized for high temperature burning.a. insulatorsb. kaolinc. refractoryd. none of the given