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प्रश्न
Name the following:
The chemical name of rust.
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उत्तर
Hydrated iron (III) oxide (Fe203-xH2O)
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संबंधित प्रश्न
Rust is a hydrated oxide of iron which is
What are oxides ?
What do you observe when Sulphur is heated and then tested with moist blue and red litmus – paper?
Classify Sulphur dioxide. Also give a balanced equation to prepare it.
Classify Magnesium oxide. Also give a balanced equation to prepare it.
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.
State why galvanization, tinning and chromeplating are used as three different processes for coating specific articles for prevention of rusting.
State a specific reason for using zinc in galvanizing
State a specific reason for using lead in bullets
Give word equation for the reaction of Non-metal:
Sulphur
Give word equation for the reaction of Non-metal:
carbon
Give word equation for the reaction of metal is:
sodium
Give word equation for the reaction of metal is:
calcium
Give word equation for the reaction of metal is:
magnesium with oxygen
Name the following:
The product formed on oxidation of phosphorus.
