Chemistry
Explain the term – rusting and give a word equation for the formation of rust. If polished iron nails are kept in three separate test tubes, state the contents in each test tube required, to prove the conditions for rusting.
Related Questions
Give a reason why the non-metals – halogens and noble gases are placed in separate groups of the periodic table with special reference to their properties and uses.
State what are metalloids. Name the elements recognized as metalloids. Compare the properties of metalloids with those of metals. State the uses of three different metalloids.
State why telegraph poles are painted with Aluminium paint.
Give a reason why oiling or greasing is done on the exposed moving iron parts of machinery and not preferred on heavy stationary iron parts.