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प्रश्न
Tick (√) the correct alternative from the choice given for the following statement.
The substance which accelerates the speed of a reaction without itself undergoing any change is called
विकल्प
catalyst
pollutant
fuel
none of the above
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उत्तर
catalyst
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संबंधित प्रश्न
Mention the contribution of the following scientists :
- Antoine Lavoisier
- Robert Boyle
- Joseph Priestley
- Sir W. Ramsay
Give two uses of the following component present in air:
nitrogen
How is air useful to agriculture?
State the meaning of the term Air
Draw a neat labelled diagram for the following experiment.
To prepare oxygen in the laboratory from hydrogen peroxide and a catalyst.
Draw a neat labelled diagram for the following experiment.
To demonstrate the burning of sulphur in a jar of oxygen.
Complete the statement given below by filling in the blank with the correct word/s from the word/s given below
____________ is an example of a pollutant present in the air.
What is wind energy?
The process of conversion of iron into hydrated form of oxides is called _______.
What is global warming?
