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प्रश्न
Fill in the following blanks with suitable words:
The addition of oxygen to a substance is called ......... whereas removal of oxygen is called ........
उत्तर
The addition of oxygen to a substance is called oxidation, whereas removal of oxygen is called reduction.
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संबंधित प्रश्न
What is meant by rust?
Is oxidation an exothermic or an endothermic reaction?
Define oxidation in terms of gain or loss of hydrogen with one example.
Complete and balance the following equation:
\[\ce{K + H2O -> }\]________+ ________
Explain the term reduction in term of addition and removal of oxygen/hydrogen with a suitable example.
Find the oxidation number of the elements in the following compounds.
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- Mn in MnSO4
- N in HNO3
Which among the following are physical or chemical change?
Burning of Liquefied Petroleum Gas (LPG)
During the reaction of some metals with dilute hydrochloric acid, following observations are made.
The temperature of the reaction mixture rises when aluminium (Al) is added.
Explain this observation giving suitable reason.
______ is a metal that has a high resistance to corrosion.
In the redox reaction:
MnO2 + 4HCl → MnCl2 + 2H2O + Cl2
