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(C)38. Hydrogen peroxide is used to restore the colour of old oil paintings containing lead oxide. Explain.39. In what way is the crystalline form of water of great ecological significance?40. On what principle does the ion-exchange method works for the softening of hard water?41. Calculate the amount of H2O2 present in 20 ml of 30 volume H,O, solution.42. Hydrogen generally forms covalent compounds. Give reason.43. Name one compound in which hydrogen occurs in (a) +1 and (b) -1 oxidation state.44. Complete the following reactions :(a) AIN + H2O(b) Cacz + H2045. Explain the hydroformylation reaction of olefins. |
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Answer» Answer: An Internet SERVICE provider is an ORGANIZATION that provides a MYRIAD of SERVICES for accessing, using, or participating in the Internet. Internet service providers can be organized in various forms, such as commercial, community-owned, non-profit, or otherwise PRIVATELY owned. |
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