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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
Classify the following reaction as combination, decomposition, displacement, precipitation and neutralization. Also balance the equation.
\[\ce{NH3_{(g)} + HCl_{(g)} -> NH4Cl_{(s)}}\]
Fill in the blank
A new substance is formed in a _______ change.
Write the chemical reaction where the following changes are observed.
Physical state is changed
Give reason for the following:
Molybdenum is used in the manufacture of ammonia.
Give reason for the following:
Blue solution of copper sulphate changes to green when a piece of iron is added to this solution.
What do you understand by precipitation reaction? Explain with examples.
Give an example of the following chemical changes.
A reaction where colour change is noticed.
Name: Gas with rotten egg smell.
Give a suitable example with an equation to show the representation of a chemical reaction.
Write the characteristics of chemical change.
