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प्रश्न
Reacting with water, an active metal produces
पर्याय
oxygen
nitric acid
a base
none of these
उत्तर
a base
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संबंधित प्रश्न
Give an example of an oxidation reaction.
Fill in the blank
In redox reaction oxidation and reduction occur ............................
Explain the following in term Reduction of gain or loss of oxygen with two example.
Electrolysis is a redox process. Explain.
Name:
a substance that oxidizes concentrated HCl to chlorine.
Name:
a liquid that is an oxidizing agent as well as a reducing agent.
Complete and balance the following equation:
Fe + H2O →___________+____________
Select the oxidising agent for the following reaction:
\[\ce{H2S + I2 -> 2HI + S}\]
Identify the reducing agent in the following reactions
`2"H"_2 + "O"_2 -> 2"H"_2"O"`
When hydrogen gas is passed over black copper oxide, a reddish-coloured layer of copper is formed.
Answer the questions that follow based on this reaction.
- Write the equation.
- What type of reaction is it?
- Complete the blanks:
In this reaction, an oxygen atom goes away from CuO (copper oxide), which means that ______ of copper oxide takes place, whereas a hydrogen molecule takes up an oxygen atom and water (H2O) is formed, meaning ______ of hydrogen takes place.
