Common Chemical Industries in Pakistan MCQs
MCQ's from chapter 15 Common Chemical Industries in Pakistan chemistry book 1 for FSC pre engineering and pre medical for Board of Intermediate and Secondary education. Also For Entry Test Preparation for UET, NUST, PIEAS, GIKI, AIR, FAST, WAH University, UHS, other engineering Universities and Medical Colleges.
- Which process/ reaction gives urea with ammonium carbonat
a) Hlogenation b) Dehrdrationc) Hydrolsis d) None of the above- Urea as a fertilizer contain
a) 57% N b) 73% Nc) 46% N d) 53% N- Ammonium nitrate is a useful fertilizer except for
a) Wheat b) Sugar canec) Barley d) Paddy rice- The phosphoric acid which is used for the preparation of di ammonium phosphate fertilizer is having 60 to 70oC temperature and
a) PH 5-6 b) PH 5.8 to 6\c) PH 7-8 d) PH 6 to 7.5- Which three elements are needed for the healthy growth of plants
a) N.S.P b) N.Ca.Pc) N.P.K d) N.K.C- The nitrogen present in some fertilizer help plants
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- To fight against diseases
- To produce fat
- To undergo photosynthesis
- To produce proteins
- phosphorus help in the growth of
a) Root b) Leavec) Stem d) Seed- The wood paper is derived from the name of which reedy plant
a) Rose b) Sunflowerc) Papyrus d) Water hyacinth- Which is not a calcarous material?
a) Lime b) Clayc) Marble d) Marine shell- Ammonium nitrate fertilizer is not used for which crop
a) Cotton b) Wheatc) Sugar cane d) Paddy rice- Cement is very important building material which was first of all introduce by English Mason Joseph Aspdin in
a) 1875 b) 1824c) 1860 d) 1920- Paper consumption per person in Pakistan is
a) 5kg b) 4kgc) 6kg d) 8kg- The slurry which contains in the making of cement ……% of water
a) 35 to 45 b) 40 to 45c) 45 to 50 d) None of the given- The dried paper is wound in the form of a reel having final moisture of about …….%
a) 6 to 8 b) 4 to 6c) 2 to 8 d) 5 to 8- NH2-CO-NH2 is the chemical formula of
a) Ammonia b) Diamino ketonc) Urea d) Both of b and c- The fertility of the soil is improved by ______
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- Rotation of the crops
- Adding lime to the acid salts
- Adding manure and growing legumes
- All
- Which of the following is incorrect statement about nitrogen importance?
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- It enhances plant growth
- It is involved in the synthesis of protein and nucleic acids
- It accelerates fruits and flowers growth
- It is involved in the chlorophyll synthesis
- The fertilizers, which provide single nutrient from NPK, are called _________fertilizer
a) Straight b) Compoundc) Both a and b d) None of the above- Which of the following in macronutrient?
a) Cu b) Cl2c) H2 d) Zn- Addition of urea of the soil is ______________ reaction
a) Endothermic b) Exothermicc) Both a and b d) No heat energy is involved- Which of the following is the most suitable catalyst for ammonia synthesis?
a) Pt b) ZnO + Cr2O3c) Fe2O3 + MO2O3 d) All of the above- The cooling of molten urea by air in the tower is called_________
a) Prilling b) Evaporationc) Condensation d) Crystallization- Which of the following fertilizers is more useful for paddy rice?
a) Urea b) DAPc) Ammonium sulphate d) Ammonium nitrate- DAP (Diammonium hydrogen phosphate) contains _______ PLANT nutrients.
a) 60% b) 65%c) 70% d) 75%- Which of the following potassium fertilizers are more useful for horticultural crops, tobacco & potatoes?
a) KCl b) KNO3c) K2SO4 d) KMnO4- Calcarious material includes___________
a) Lime stone b) Marblec) Chalk d) All of the above- Argillaceous material does not include____________
a) Clay b) Marine shellsc) Slated d) Blast furnace slag- Which of the following processes is used for the synthesis of cement?
a) Dry process b) Wet processc) Both d) None- Phosphorus helps in the growth of ________
a) Root b) Leavec) Stem d) Seed- How many zones through which the charge passes in a rotary kiln?
a) 4 b) 3c) 2 d) 5- The nutrients which are required in very small amount for the growth of plants are called.
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- Nitrogenous fertilizers
- Micronutrients
- Phosphorus fertilizer
- Surfactant
- Which one of the following set of raw material is most suitable for manufacture of urea?
a) CH4, N2 and CO2 b) H2, N2 and COc) H2, CO2 and H2O d) H2O, N2 and H2- Which one of the following statement is correct for urea?
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- It is a synthetic fertilizer
- It is a natural fertilizer
- It provides micronutrients to plants
- It is an inorganic water soluble compound
- Which on the following is an inorganic fertilizer?
a) 36% b) 46%c) 56% d) 66%- Which one of the following is an inorganic fertilizer?
a) Manure b) Ureac) Ammonium nitrate d) All36. There is only one nitrogen fertilizer which is used as liquid isa) NH4NO3 b) NH4Cla) NH3 d) (NH4)2HPO437. Except Ca(NO3)2, NaNO3 and KNO3, all nitrogen fertilizers make the soila) Acidic b) Basicc) Neutral d) None of these38. Which fertilizer contain 82% nitrogen?a) NH4NO3 b) KNO3c) NH4Cl d) NH339. NH4NO3 is used as fertilizer for most crops excepta) Potato b) Sugarcanec) Paddy rice d) Tobacco40. The percentage of nitrogen in urea isa) 40% b) 46%c) 48% d) 50%41. Potassium fertilizers are used fora) Fruits b) Vegetablec) Tobacco d) All of these42. From which of the following natural fiber is obtained?a) Animal b) Vegetablec) Mineral d) All of these43. The percentage of nitrogen in ammonia nitrate isa) 46% b) 33 – 33.5%c) 82% d) 48%44. NH4NO3 is used as a fertilizer for many crops except paddy rice becausea) Its granules are solidb) It is poisonousc) It is neutrald) The microbial bacteria in flooded field decompose NH4NO3 into N2 gas45. Manufacturing of super phosphate fertilizer involvesa) Six steps b) Five stepsc) Four steps d) Three steps46. The percentage of P2O5 in triple super phosphate fertilizer isa) 45 – 46% b) 46 – 48%c) 33 – 35% d) 40%47. The percentage of nitrogen in ammonium sulphate isa) 21% b) 25%c) 46% d) 82%48. The Stoichiometric ration of CO2/NH3 conversion to urea is abouta) 50% b) 55%c) 60% d) 65%49. The chief strength producing constituents of cement isa) Limeb) MgOc) Tricalcium silicate (3CaO.SiO2)d) All of these50. Clinker is produced bya) Wet method b) Dry methodc) Bayer’s method d) Both a & b51. The final product which is obtained from the rotary kiln (cement production) is calleda) Clinker b) Pulpc) Fiber d) Polymer52. The separation of cellulose fibers by mechanical method or by various chemicals from the matrix result intoa) Clinker b) Pulpc) Polymer d) Isomer53. The industrial abbreviation of Tricalcium aluminate isa) C2S b) C3Sc) C3A d) C4AP54. Super phosphate fertilizer is formed by thea) Acylation of phosphate rockb) Alkylation of phosphate rockc) Acidulation of phosphate rockd) Aromatization of phosphate rock55. Natural fertilizers are materials derived froma) Plants b) Animalsc) Algae d) All of these56. The fertilizers, which provide single nutrientfrom NPK, are called _____ fertilizers.a) Straight b) Compoundc) Both a & b d) None57. The substances added to the soil in very smallamounts (about 6 grams to 200 grams peracre) are called _______a) Macronutrients b) Micronutrientsc) Fertilizers d) None of these58. A natural fertilizer provide about ______ kg ofnitrogen.a) 4.5 b) 3.2c) 2.2 d) 1.559. A natural fertilizer provides ______ kg of P2O5a) 4.5 b) 3.2c) 2.2 d) 1.560. The percentage of nitrogen in ammoniumsulphate is _______a) 32 – 33.5 b) 50 – 55c) 80 – 82 d) 20 – 2561. The percentage of sulphur in ammoniumsulphate is ______ %.a) 25 b) 21c) 23 d) 1962. Ammonium nitrate is sold as a mixture with_________a) Soda Ash b) Limestonec) Zinc d) None of these63. Any material, which changes the cleaningeffect of water is called _______a) Fertilizers b) Detergentc) Acid d) None of these64. Commercial detergents contain mainly ______a) RCOON b) RONac) RSNa d) ROSO3Na65. The principle former of almost all glasses is________a) (SiO2)n b) (SiO3)nc) (SiO2)X d) None of these66. Calcarious material includes ________a) Lime stone b) Marblec) Chalk d) All of the above67. Cement is a mixture of so many compoundsroasted in rotary kiln. Which substances hasgreater percentage?a) Lime (CaO) b) Silica (SiO2)c) Alumina (Al2O3) d) Magnesia (MgO)68. The important function of burning zone in therotary kiln is ______a) To dry the moisture of slurryb) To decompose lime stone to unslaked limec) Combination of different oxides like CaO2,SiO2, Fe2O3 and Al2O3.d) To reduce the impurities69. Asbestos is a _______a) Mineral fiber b) Animal fiberc) Vegetable fiber d) None of these
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