45. Consider these three compounds Which are isomers? A. I and Il only B. II and

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45. Consider these three compounds Which are isomers? A. I and Il only B. II and III only C. land only D· I,II, and III 46 Sulfur dioxide, the primary product of salfur combustion, further 2SO2 + O2 2 so, What is the final step in the formation of the acidic acrosol? A. Reaction of sulfur trioxide with nitrogen oxide. B. Reaction of sulfur trioxide with water. C. Reaction of sulfur trioxide with sodium hydroxide. D. Reaction of sulfur trioxide with nitrogen gas. Most of the sulfur in coal originates from A. decaying vegetation in swamps and peat bogs. B. sulfate ions (SO) naturally present in sea water. C. sulfur deposits located adjacent to coal deposits. D. the natural sulfur content of the plants making up the coal. 47. If acids are compounds that release protons (H'), how is it that SO, and NO, cause acid rain? A. They react with hydrogen gas in the atmosphere to produce acids. B. There is not sufficient evidence to indicate that these compounds actually do cause acid rain. C. They react with water to form acids. D. They react with ammonia to form acids. 48. 49. Bases are substances that increase the hydroxide ion concentration in aqueous solution. Why does ammonia (NH), which does not contain a hydroxide group, act as a base? A. Ammonia acts as a base only in the presence of hydroxide ion-containing compounds B. Ammonia molecules remove protons from water molecules, forming hydroxide ions. C. Ammonia molecules donate protons to water molecules, forming hydroxide ions D. Ammonia acts as a base only in the presence of very strong acids. 50. Predict the products of the chemical equation: 3 LiOH-HPO A. 3 LiH +(OH) PO B. 3 H+302+H&Lis; C. Li PO+3 HO

Explanation / Answer

45. Molecular formla of I is H6C2O, II is H4CO, and III is H6C2O

Isomers contain same molecular formual diffrerent arrageent of atoms. So I and III are isomers and the correct option is B.

46. Acidic aerosol contains H2SO4, which is formed when SO3 reacts with H2O.

SO3 + H2O ......> H2SO4

The correct option is B.

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