InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
igmentwhich2Name thewrite the SI unit of resistivity,2transports oxygen and carbon dioxideoon is kept immersed in an aqueous solution of coppeobserved in the spoon as well as in the solution? Justify yourbeWhy do we store silver chloride in dark coloured bottles? |
|
Answer» (1) Transport of oxygen and carbon-dioxide occurs with the help of respiratory pigment called hemoglobin. (2) The SI unit of electrical resistivity is the ohm⋅metre (Ω⋅m). (3) When a silver spoon is immersed in a copper sulphate solution, nothing happens. It is because silver is less reactive than copper according to the electrochemical series, so it can not displace copper from copper sulphate solution. However copper would have replaced silver if the case was opposite. (4) Dark coloured bottles interrupt the path of light such that light cannot reach silver chloride in the bottles and its decomposition is prevented. It is known that silver chloride decomposes to silver and chlorine in the presence of light. |
|