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प्रश्न
A metal oxide that is reduced by hydrogen is
पर्याय
Al2O3
CuO
CaO
Na2O
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उत्तर
CuO
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संबंधित प्रश्न
In order to prevent the spoilage of potato chips, they are packed in plastic bags in an atmosphere of ______.
Give the general group study of hydrogen with reference to
reducing power
State, giving reason, whether the substances printed in bold letters have been oxidized or reduced.
Mg + 2HCl → MgCl2 + H2
Name:
a liquid that is an oxidizing agent as well as a reducing agent.
Explain the term reduction in term of addition and removal of oxygen/hydrogen with a suitable example.
When Ag is exposed to air it gets a black coating of ____________.
Identify the oxidising agent (oxidant) in the following reactions
`2"Mg" + "O"_2 -> 2"MgO"`
Which among the following are physical or chemical change?
Sublimation of solid ammonium chloride
During the reaction of some metals with dilute hydrochloric acid, following observations are made.
Silver metal does not show any change
Explain this observation giving suitable reason.
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?
