Class 12ChemistryGeneral Principles and Processes of Isolation of ElementsMix Examples of General Principles and processes of Isolation of Elements
EasyAddition of high proportions of manganese makes steel useful in making rails of rail-roads because manganese
- AGives hardness to steel
- BHelps the formation of oxides of iron
- CCan remove oxygen and sulphur
- DBoth $(a)$ and $(c)$
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Which of the following is not a basic flux?
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View SolutionWhat is the approximate ratio of roasted ore,coke and limestone respectively in the charge to be added into the blast furnace for the extraction of iron?
Match List-$I$ with List-$II$.
List-$I$ (Industrial process) List-$II$ (Application) $(a)$ Haber's process $(i)$ $HNO_{3}$ synthesis $(b)$ Ostwald's process $(ii)$ Aluminium extraction $(c)$ Contact process $(iii)$ $NH_{3}$ synthesis $(d)$ Hall-Heroult process $(iv)$ $H_{2}SO_{4}$ synthesis
Choose the correct answer from the options given below:
| List-$I$ (Industrial process) | List-$II$ (Application) |
| $(a)$ Haber's process | $(i)$ $HNO_{3}$ synthesis |
| $(b)$ Ostwald's process | $(ii)$ Aluminium extraction |
| $(c)$ Contact process | $(iii)$ $NH_{3}$ synthesis |
| $(d)$ Hall-Heroult process | $(iv)$ $H_{2}SO_{4}$ synthesis |
Choose the correct answer from the options given below:
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