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प्रश्न
Give word equation for the reaction of metal is:
calcium
उत्तर
calcium + Oxygen → Calcium oxide
\[\ce{Ca + O2 -> 2CaO}\]
[burning]
Flame colour: Brick yellow
Litmus test: Moist red to blue
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संबंधित प्रश्न
Rust is a hydrated oxide of iron which is
Fill in the blank spaces by choosing the correct words from the given list.
List: amalgam, chlorine, gallium, sodium chloride, silver chloride
A gas used to sterilisation of drinking water is ________
What are oxides ?
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.
\[\ce{KClO3 ->[heat] ?? + O2}\]
Which one of the following is most likely to be corroded?
Classify Sulphur dioxide. 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 reason for the following:
Galvanized steel is not used for articles used for edible applications.
Give word equation for the reaction of metal is:
sodium
Name the following:
The chemical name of rust.
