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Corrugated iron sheets are coated with a greyish substance to prevent them from rusting.a)Name the substance.b)Name the process.c)Make a scratch on such a sheet , observe it after a few weeks .what do you expect? |
Answer» <html><body><p><strong>Answer:</strong></p><p>a) Zinc</p><p>b) Galvanisation</p><p> <a href="https://interviewquestions.tuteehub.com/tag/iron-1051344" style="font-weight:bold;" target="_blank" title="Click to know more about IRON">IRON</a> when comes in contact with moist <a href="https://interviewquestions.tuteehub.com/tag/air-852233" style="font-weight:bold;" target="_blank" title="Click to know more about AIR">AIR</a> it reacts with it to form a brown <a href="https://interviewquestions.tuteehub.com/tag/powder-603608" style="font-weight:bold;" target="_blank" title="Click to know more about POWDER">POWDER</a> rust. Rust damages the iron. <a href="https://interviewquestions.tuteehub.com/tag/thus-2307358" style="font-weight:bold;" target="_blank" title="Click to know more about THUS">THUS</a>, to prevent the <a href="https://interviewquestions.tuteehub.com/tag/rusting-1192632" style="font-weight:bold;" target="_blank" title="Click to know more about RUSTING">RUSTING</a> of the iron they are coated with zinc.</p><p></p></body></html> | |