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प्रश्न
Fill in the blank
A catalyst either ................or ............... the rate of a chemical change but itself remains ............... at the end of the reaction.
उत्तर
A catalyst either increases or decreases the rate of a chemical change but itself remains unchanged at the end of the reaction.
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संबंधित प्रश्न
When baking soda is mixed with lemon juice, bubbles are formed with the evolution of a gas. What type of change is it? Explain.
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Change in state
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Ammonia is a good oxidizing agent.
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Write true or false.
A chemical equation gives only qualitative information of a chemical reaction.
Name the type of chemical reaction shown by the following equation:
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| f. | Fluorine | vi. | Physical change |
| g. | Magnesium | vii. | Tendency to form anion |
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Sodium chloride
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Write the chemical reaction where the following changes are observed.
Precipitate is formed
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Multiple choice:
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State the following reaction represent oxidation or reduction.
\[\ce{Al->Al+++}\]
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Are these changes chemical in nature?
Write the chemical reaction of baking soda with lemon.
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Write a note on the catalyst.
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Fermentation
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Chemical change
