Advertisements
Advertisements
Question
Rust is a hydrated oxide of iron which is
Options
Reddish brown
Green
White
Black
Solution
Reddish brown
APPEARS IN
RELATED QUESTIONS
Give two examples of metallic oxides.
What do you observe when Sulphur is heated and then tested with moist blue and red litmus – paper?
Complete and balance the following chemical equation.
\[\ce{KClO3 ->[heat] ?? + O2}\]
What happens when the mercuric oxide is heated?
Classify Copper oxide. Also give a balanced equation to prepare it.
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 lead in bullets
State a specific reason for using magnesium in fireworks.
Give word equation for the reaction of Non-metal:
phosphorus
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.
Name the following:
The chemical name of rust.
