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Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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1) The combustion reaction, C+02 = CO2, is a) exothermic b) endothermic c) autocatalytic d) none of these 2) What is the difference between super phosphate and triple super phosphate? 3) Concentration of NaOH solution produced by diaphragm electrolytic cell is about percent. a) b) c) d) 10 25 50 98 4) Concentration of NaOH solution produced by mercury electrolytic cell is about percent. 5) CO2 present in reformed gas (obtained by steam reforming of naphtha) is removed by absorbing in which chemical? 6) State industrial applications of Carbon dioxide gases. 7) Contact process of sulphuric acid manufacture a) b) yields acid of higher concentration than chamber process. yields acids of lower concentration than chamber process. is obsolete. c) d) eliminates absorber. 8) In the manufacture of H2S04, vanadium catalyst as compared to platinum catalyst a) gives higher conversion efficiency. b) has a longer life and is not poisoned by arsenic. c) handles lower SO2 content gas (7-10% SO2), thus increasing the capital cost of the plant. d) all (a), (b) and (c). 9) Soda ash is also called....... 10) Sulphuric acid saturated with SO3 is called a) concentrated H₂SO4. b) sulphurous acid. c) oleum. d) none of these.
Transcribed Image Text:1) The combustion reaction, C+02 = CO2, is a) exothermic b) endothermic c) autocatalytic d) none of these 2) What is the difference between super phosphate and triple super phosphate? 3) Concentration of NaOH solution produced by diaphragm electrolytic cell is about percent. a) b) c) d) 10 25 50 98 4) Concentration of NaOH solution produced by mercury electrolytic cell is about percent. 5) CO2 present in reformed gas (obtained by steam reforming of naphtha) is removed by absorbing in which chemical? 6) State industrial applications of Carbon dioxide gases. 7) Contact process of sulphuric acid manufacture a) b) yields acid of higher concentration than chamber process. yields acids of lower concentration than chamber process. is obsolete. c) d) eliminates absorber. 8) In the manufacture of H2S04, vanadium catalyst as compared to platinum catalyst a) gives higher conversion efficiency. b) has a longer life and is not poisoned by arsenic. c) handles lower SO2 content gas (7-10% SO2), thus increasing the capital cost of the plant. d) all (a), (b) and (c). 9) Soda ash is also called....... 10) Sulphuric acid saturated with SO3 is called a) concentrated H₂SO4. b) sulphurous acid. c) oleum. d) none of these.
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