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प्रश्न
Name the following:
The pollutant which combines with water vapour to give sulphuric acid – a product of acid rain.
उत्तर
Sulphur trioxide.
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संबंधित प्रश्न
What do you observe when Magnesium is heated and then tested with moist blue and red litmus – paper?
What is rust ?
State at least two ways of prevent rusting.
Oxygen of the air is utilised for ‘combustiop’ and for ‘respiration’. Compare the two with a suitable examples.
Describe simple experiments to show the presence of -
oxygen and nitrogen component in air using a bell jar
Describe simple experiments to show the presence of -
carbon dioxide in air using a test tube with outlets containing lime water.
In the laboratory preparation of oxygen from hydrogen peroxide answer the following:
Draw a neat labelled diagram for the method used in the above preparation.
In the laboratory preparation of oxygen from hydrogen peroxide answer the following:
Name the catalyst used in the preparation and state it’s function.
Distinguish between:
Combustion & Rusting with suitable word equations only?
Give reason for the following:
Combustion and respiration show similarity.
