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प्रश्न
Explain by writing a word equation.
Respiration is a chemical change.
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उत्तर
Respiration is a continuously occurring biological process. In this process air is inhaled, oxygen present in this inhaled air reacts with glucose present in the cells of the body forming carbon dioxide and water. The word equation and the chemical equation of this chemical reaction are as follows: (Here, the chemical equation is not balanced.)
Word equation:
\[\ce{Glucose + Oxygen ->[respiration] Carbon dioxide + Water}\]
संबंधित प्रश्न
How do the following help in bringing about a chemical change?
pressure.
How do the following help in bringing about a chemical change?
catalyst .
What are the characteristics of a chemical reaction ? A chemical reaction is characterised by an irreversible change in which a new substance is formed.
Fill in the blank:
During a chemical reaction transfer of ________ takes place.
Explain the term reactant and product giving examples.
Give one example electrochemical reaction.
Distinguish by heating the following in dry test tubs.
Zinc nitrate and copper nitrate.
Write your observation and a balanced equation in the case of the following substances being heated.
Ammonium chloride
Give reason for the following:
A characteristic change of colour is seen when a piece of iron is added to copper [II] sulphate solution.
Galvanization is a process in which ______ is coated as a layer of iron.
