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प्रश्न
Reacting with water, an active metal produces
विकल्प
oxygen
nitric acid
a base
none of these
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उत्तर
a base
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संबंधित प्रश्न
Write the chemical formula of rust.
Give one example of an oxidation-reduction reaction which is also a displacement reaction.
When copper powder is heated strongly in air, it forms copper oxide. Write a balanced chemical equation for this reaction. Name
- substance oxidised, and
- substance reduced.
Write the equation in the ionic form
CuSO4(aq) + Fe(s)→ FeSO4(aq) + Cu(s)
Find the oxidation number of the elements in the following compounds.
- C in CO2
- Mn in MnSO4
- N in HNO3
Oxidation is a process which involves ____________.
Identify the reducing agent in the following reactions
`"Fe"_2"O"_3 + 3"CO" -> 2"Fe" + 3"CO"_2`
Which among the following are physical or chemical change?
Sublimation of solid ammonium chloride
You are provided with two containers made up of copper and aluminium. You are also provided with solutions of dilute HCl, dilute HNO3, ZnCl2 and water. In which of the above containers, can these solutions be kept?
It is recommended to use air tight containers for storing oil for a long time.
