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प्रश्न
________ is a chemical substance which alters the speed of a chemical reaction.
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उत्तर
Catalyst is a chemical substance which alters the speed of a chemical reaction.
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संबंधित प्रश्न
Give one example that illustrates the following characteristics of a chemical reaction:
Change in state
FILL IN THE BLANK
A .............. change is a temporary change.
Explain the following reaction with one suitable example of Displacement reaction.
What do you observe when Cl2 is passed through potassium iodide (KI) solution.
Give a word equation for the following reaction.
Two gases which combine to give a solid.
Differentiate between the following:
Neutralization reaction and a precipitation reaction.
Analogy:
H2O: Water:: NaCl: ______.
Arrange the following statements in correct sequence:
- One side is water-loving and other water-hating molecules.
- When you agitate the cloth, the dirt is surrounded by many molecules and taken away from the cloth.
- The dirt surrounded by the detergent molecules floats in the water making it dirty.
- Finally, the cloth is clean.
- The detergent molecules have two sides.
- Water hating goes and joins with dirt and oil in the cloth while the water-loving joins with the water molecules.
______ are substances that speed up the process of a chemical change and it will not undergo any change during the course of the reaction.
Which is used as a catalyst during the process of hydrogenation of oils?
