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प्रश्न
With reference to oxidation & reduction reaction – complete the statement given by filling in the blanks with only the words (a) Addition (b) Removal.
‘Oxidation is a chemical reaction involving ____ of oxygen to a substance or ____ of hydrogen from a substance. Reduction on the otherhand involves ____ of hydrogen to a substance or ____ of oxygen from a substance.
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उत्तर
‘Oxidation is a chemical reaction involving – addition of oxygen to a substance or removal of hydrogen from a substance. Reduction on the otherhand involves addition of hydrogen to a substance or removal of oxygen from a substance.
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संबंधित प्रश्न
In the following reaction between lead sulphide and hydrogen peroxide:
\[\ce{PbS_{(s)} + 4H2O2_{(aq)} -> PbSO4_{(s)} + 4H2O_{(l)}}\]
- Which substance is reduced?
- Which substance is oxidised?
Explain the following in terms of gain or loss of oxygen with one example:
Reduction
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.
Indicate which of the following statement is true and which is false:
The removal of hydrogen from a substance is called reduction.
Define redox reaction.
TRUE \ FALSE
Hydrogen is a good oxidizing agent.
State whether the following conversion is oxidation or reduction:
PbO2 + SO2→ PbSO4
Complete and balance the following equation:
\[\ce{K + H2O -> }\]________+ ________
The tarnishing of metals is an example of ______ reaction.
Identify the type of chemical reaction given below:
\[\ce{2Mg + O2 -> 2MgO}\]
