Advertisements
Advertisements
प्रश्न
Write the balanced chemical equation of the manganese dioxide.
उत्तर
\[\ce{Hydrogen peroxide ->[Manganese dioxide] Water + Oxygen}\]
\[\ce{2H2O2 ->[MnO2] 2H2O + O2}\]
APPEARS IN
संबंधित प्रश्न
Fill in the blanks :
Oxides of sulphur and nitrogen combine with rain water to form ___________ and _________ which cause ____________.
What happens when Iron burns in oxygen ? Also give the balanced chemical equation for the reaction.
Tick (√ ) the most appropriate answer.
Galvanising is the process of coating iron with a layer of molten :
What is rusting?
State two most important conditions for rusting.
Describe simple experiments to show the presence of -
carbon dioxide in air using a test tube with outlets containing lime water.
Distinguish between:
Combustion & Rusting with suitable word equations only?
Give the main experimental points only to demonstrate that candle-gains weight on burning.
What is meant by burning?
Match the following
1. | Burning of meteors | a. | Exosphere |
2. | Weather change | b. | Stratosphere |
3. | Lowest temperature | c. | Mesosphere |
4. | Ozone layer | d. | Troposphere |