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प्रश्न
Name the following:
The process in which oxygen is added or hydrogen is removed.
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उत्तर
Oxidation
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संबंधित प्रश्न
When a magnesium ribbon burns in air with a dazzling flame and forms a white ash, is magnesium oxidised or reduced? Why?
Define the following in terms of gain or loss of hydrogen with one example:
Reduction
Fill in the blank
In redox reaction oxidation and reduction occur ............................
Complete and balance the following equation:
H2 + S → ___________
Complete and balance the following equation:
Fe + H2O →___________+____________
Explain the following reaction with their balanced chemical equation.
Hydrogen sulphide reacts with sulphur dioxide.
Write a short note on oxidizing and reducing agents.
Find the oxidation number of the element in the following compound.
Zn in ZnSO4
Find the oxidation number of the element in the following compound.
Mg in MgO
A reddish brown metal used in electrical wires when powdered and heated strongly turns black. When hydrogen gas is passed over this black substance, it regains its original colour. Based on this information answer the following questions:
- Name the metal and the black substance formed.
- Write balanced chemical equations for the two reactions involved in the above information
