Description : Main pollutants released from iron & steel industry is (A) CO, CO2 & SO2 (B) H2S, NO & SO3 (C) CO2 , H2S & NO2 (D) SO3 , NO2 & CO2
Last Answer : (A) CO, CO2 & SO2
Description : Main pollutants released from petroleum refineries is (A) CO, SO2 & H2S (B) CO2 , NO & SO3 (C) CO2 , H2S & NO2 (D) SO3 , NO2 & CO2
Last Answer : (A) CO, SO2 & H2S
Description : Acid rain is due to increase in atmospheric concentration of (a) ozone and dust (b) CO2 and CO (c) SO3 and CO (d) SO2 and NO2
Last Answer : (d) SO2 and NO2.
Description : Acid rain is due to increase in atmospheric concentration of (a) ozone and dust (b) CO2 and CO (c) SO3 and CO (d) SO2 and NO2.
Description : Acid rain is caused by increase in the atmospheric concentration of (a) CO2 and CO (b) O3 and dust (c) SO2 and NO2 (d) SO3 and CO.
Last Answer : (c) SO2 and NO2
Description : Which of the following pollutants, if present in atmosphere is detectable by its odour ? (A) CO (B) SO2 (C) NO2 (D) CO2
Last Answer : (B) SO2
Description : Acid rains are due to which of the following gases? (a) CO2 and CO (b) Ozone and CO2(c) NO2 and SO2 (d) NH3 and CO2
Last Answer : (c) NO2 and SO2
Description : Acid rain is caused by a) SO2 and NO2 b) SO2 and CO c) NH3 and CO d) SO2 and NH3.
Last Answer : a) SO2
Description : Pick out the wrong statement. (A) Benzopyrene which causes cancer is present in traces in tobacco, charcoal & petrol driven automobile exhaust (B) NO2 is capable of penetrating the troposphere and ... at all produced during combustion of sulphur bearing fuels as all the sulphur is oxidised to SO2
Last Answer : (D) H2S is not at all produced during combustion of sulphur bearing fuels as all the sulphur is oxidised to SO2
Description : How would the equilibrium change if NO2 were added to SO2(g)+NO2(g)=NO(g)+SO3(g)+heat?
Last Answer : The amount of NO and SO3 would increased.
Description : When conc. H2 SO4 is added to dry KNO3 , brown fumes are evolved. These fumes are due to (1) SO3 (2) SO2 (3) NO2 (4) N2O
Last Answer : NO2
Description : . Bromides contained in hot mother liquor is treated with __________ during manufacture of bromine from sea water. (A) SO3 (B) Cl2 (C) NH3 (D) SO2
Last Answer : (B) Cl2
Description : Multistage catalytic converter is not used in the (A) Conversion of SO2 to SO3 (B) NH3 synthesis reaction (C) Both (A) and (B) (D) Neither (A) nor (B)
Last Answer : (B) NH3 synthesis reaction
Description : Major gaseous pollutant of the thermal power station is – (1) H2S (2) NH3 (3) NO2 (4) SO2
Last Answer : (4) SO2 Explanation: A flue-gas stack is a type of chimney, a vertical pipe, channel or similar structure through which combustion product gases called flue gases are exhausted to the outside air ... CO2) and water vapor as well as nitrogen and excess oxygen remaining from the intake combustion air.
Description : Acid rains are produced by (a) excess NO2 and SO2 from burning fossil fuels (b) excess production of NH3 by industry and coal gas (c) excess release of carbon monoxide by incomplete combustion (d) excess formation of CO2 by combustion and animal respiration.
Last Answer : (a) excess NO2 and SO2 from burning fossil fuels
Description : Major gaseous pollutant of the thermal power station is (1) H2 S (2) NH3 (3) NO2 (4) SO2
Last Answer : SO2
Description : Lichens indicate pollution by a) O3 b) SO2 c) NO2 d) CO.
Last Answer : b) SO2
Description : The most dangerous pollutant in vehicular emissions is A. CO B. SO2 C. CO2 D. O3
Last Answer : ANS: A
Description : Indicate the types of isomerisms exhibited by the complex [Co(NH3)5 (NO2)] (NO3)2. (At. no. Co = 27) -Chemistry
Last Answer : It shows ionisation isomerism and linkage isomerism.
Description : In multistage equilibrium conversion of SO2 to SO3 (2SO2 + O2 ⇌ 2SO3 ), the reverse reaction becomes appreciable at a temperature of 550° C. The percentage equilibrium conversion of SO2 to ... some quantity of SO3 during intermediate stage (D) Maintaining low temperature & pressure in the converter
Last Answer : (C) Removing some quantity of SO3 during intermediate stage
Description : Which of the following pollutants is not emitted during volcanic eruptions? (A) SO2 (B) H2S (C) CO (D) Hydrocarbons
Last Answer : (D) Hydrocarbons
Description : Very small amount of air pollutants are present in stratosphere also; though most of the atmospheric pollutants are present in the troposphere. Which of the following atmospheric pollutants does not cause the ozone layer depletion ... rate? (A) CO (B) SO2 (C) NOx (D) CFC (chloro fluoro carbons)
Last Answer : (A) CO
Description : The worst enemy of ozone is a) Liquid NH3 b) SO2 c) CH4 d) CO.
Last Answer : c) CH4
Description : Fertiliser value of a nitrogenous fertiliser is expressed in terms of its __________ content. (A) N2 (B) KNO3 (C) NO2 (D) NHO3
Last Answer : (A) N2
Description : Limestone powder is injected during pulverised coal burning in boilers to __________ the flue gases. (A) Reduce SO2 content in (B) Catalytically convert SO2 to SO3 in (C) Increase the dew point of (D) None of these
Last Answer : (A) Reduce SO2 content in
Description : During manufacture of H2SO4 , the oxidation of SO2 to SO3 by oxygen is an endothermic reaction. The yield of SO3 will be maximised, if the (A) Temperature is increased (B) Pressure is reduced (C) Temperature is increased and pressure is reduced (D) Temperature is reduced and pressure is increased
Last Answer : (D) Temperature is reduced and pressure is increased
Description : If helium is introduced in a reactor containing O2 , SO2 and SO3 at equilibrium, so that total pressure increases while volume and temperature remains constant. In this case the dissociation of SO3 ( ... 's principle). (A) Decreases (B) Increases (C) Remains unaltered (D) Changes unpredictably
Last Answer : (A) Decreases
Description : The catalytic converter for conversion of SO2 to SO3 by contact process should have a feed with SO2 content between (A) 2-5 % (B) 7-10 % (C) 12-15 % (D) 20-25 %
Last Answer : (B) 7-10 %
Description : In chamber process of sulphuric acid manufacture in industry, the gas phase oxidation of SO2 to SO3 is accomplished by a __________ reaction. (A) Non-catalytic homogeneous (B) Non-catalytic heterogeneous (C) Catalytic homogenous (D) Catalytic heterogeneous
Last Answer : (C) Catalytic homogenous
Description : Conversion of SO2 to SO3 in Monsanto 4-pass converter is about __________ percent. (A) 80 (B) 90 (C) 98 (D) 100
Last Answer : (C) 98
Description : 10% oleum comprises of 10% free (A) SO2 (B) H2SO3 (C) SO3 (D) H2SO4
Last Answer : (C) SO3
Description : Pick out the wrong statement. (A) Conversion of SO2 to SO3 in Monsanto-4 pass converter is about 98% (B) The chemical formula of oleum is H2S2O7 , which is formed by saturating ... but technical sulphuric acid (D) Decomposition of sulphuric acid on heating does not start before its boiling
Last Answer : (D) Decomposition of sulphuric acid on heating does not start before its boiling
Description : More than 100 percent of __________ is present in oleum. (A) SO3 (B) H2SO4 (C) H2SO3 (D) SO2
Last Answer : (B) H2SO4
Description : Oleum produces fumes of (A) SO2 (B) H2SO4 (C) SO3 (D) SO2 + H2SO4
Description : At a given temperature, the equilibrium yield of SO3 obtained from the oxidation of SO2 is proportional to (where, P = pressure of the system). (A) P (B) √P (C) P (D) 1/P
Last Answer : (B) √P
Description : Color of nitric acid is light yellow due to the presence of (A) NO (B) NO2 (C) N2H5 (D) NH3
Last Answer : (B) NO2
Description : Consider the following changes: 1. Curdling of milk 2. Sublimation of camphor 3. Drying of paint 4. Oxidation of SO2 to SO3 The chemical changes are: (a) 1, 2 and 4 only (b) 1, 3 and 4 only (c) 1, 2, 3 and 4 (d) 1, 2 and 3 only
Last Answer : Ans:(b)
Description : Mark the compound which possesses ionic, covalent and coordinate bonds. (1) NH4C1 (2) SO3 (3) SO2 (4) H2O
Last Answer : (1) NH4C1 Explanation: Ammonium chloride (NH4Cl) is generally considered as an ionic compound but this compound has three different types of bond.
Description : Which of the following reagents will react with furan to form 2-furansulfonic acid? (a) SO3 in pyridine at 100°C (b) Dilute H2SO4 at 200°C (c) SO2 at 100°C (d) Dilute H2SO4 at 100°C
Last Answer : SO3 in pyridine at 100°C
Description : A fertiliser contains 82% N2 . It could be (A) Urea (B) Liquid NH3 (C) Ammonium nitrate (D) None of these
Last Answer : (B) Liquid NH3
Description : Largest capacity nitrogenous fertiliser plants (2700 tons of NH3 per day) (2 Nos.) in India are located at (A) Thal-Vaishet (under RCF in Maharashtra) and Hazira (under IFFCO in Gujarat) (B) Talcher (Orissa) ... ) and Talcher (Orissa) both under FCI (D) Haldia (W.B) and Namrup (Assam) both under HFC
Last Answer : (A) Thal-Vaishet (under RCF in Maharashtra) and Hazira (under IFFCO in Gujarat)
Description : Aerated water contains – (1) SO2 (2) NO2 (3) NO2 (4) CO2
Last Answer : (4) CO2 Explanation: Aerated water is, correctly speaking, water to which air is added. So aerated water is any water artificially impregnated with a large amount of has (as carbon dioxide). The term is, however, frequently applied to carbonated water.
Description : Acid rain is caused by - (1) SO2 and particulates (2) (2) NO2 and particulates (3) (8) CO2 and CFCs (4) (4) SO2 and NO2
Last Answer : (4) SO2 and NO2 Explanation: Acid rain is a rain or any other form of precipitation that is unusually acidic, meaning that it possesses elevated levels of hydrogen ions (low pH). Acid ... sulfur dioxide and nitrogen oxide, which react with the water molecules in the atmosphere to produce acids.
Description : Interveinal necrotic spots on leaves appear due to – (1) HF injuly (2) SO2 injury (3) NO2 injury (4) O3 injury
Last Answer : (2) SO2 injury Explanation: Injury caused by sulphur oxides show interveinal necrotic areas that are light tan to white. Uninjured tissue new to the veins remains green.
Description : Pollutant from motor car exhaust that causes mental disease is – (1) Lead (2) NO2 (3) SO2 (4) Hg
Last Answer : (1) Lead Explanation: Lead poisoning is a medical condition caused by increased levels of the heavy metal lead in the body. Lead interferes with a variety of body processes and is toxic to ... It interferes with the development of the nervous system, and is therefore particularly toxic to children.
Description : Which of the following oxide(s) is/are soluble in water to form alkalis? (i) Na2O (ii) SO2 (iii) K2O (iv) NO2 (a) (i) and (iii) (b) (i) only (c) (ii) and (iv) (d) (iii) only
Last Answer : Answer: (a)
Description : An important water contaminant is: (a) Heavy metals (b) Nitrogen oxides (c) Carbon monoxide (d) NO2 and SO2
Last Answer : (b) Nitrogen oxides
Description : SO2 and NO2 Produce pollution by increasing a) Alkalinity b) Acidity c) Neutrality d) Buffer action.
Last Answer : b) Acidity
Description : The constituents of photochemical smog responsible for eye irritation are (A) SO2 and O3 (B) SO2 and NO2 (C) HCHO and PAN (D) SO2 and SPM
Last Answer : (C) HCHO and PAN