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CBSE Class 12-science Answered

what is catalyst? Give an example of reaction to show.
Asked by tlb2bpartner | 21 Aug, 2019, 10:28: PM
answered-by-expert Expert Answer
Catalyst:
 
Substances which alter the rate of a chemical reaction and themselves remain chemically unchanged after the reaction are known as catalysts.
 
Example:
 
In the procss of manufacturing of ammonia Fe is used as catalyst.
 
straight N subscript 2 subscript open parentheses straight g close parentheses end subscript end subscript space plus space 3 straight H subscript 2 subscript open parentheses straight g close parentheses end subscript end subscript space space space space rightwards arrow with Fe on top space space space 3 NH subscript 3 subscript open parentheses straight g close parentheses end subscript end subscript SO subscript 2 subscript open parentheses straight g close parentheses end subscript end subscript space plus space straight O subscript 2 subscript open parentheses straight g close parentheses end subscript end subscript space space rightwards arrow with straight V subscript 2 straight O subscript 5 space space space space space on top space space space space space 2 SO subscript 3 subscript open parentheses straight g close parentheses end subscript end subscript
Answered by Varsha | 22 Aug, 2019, 10:11: AM

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CBSE 12-science - Chemistry
in homogeneous catalysis both catalyst and reactants have same?
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Asked by sivakapuganti1 | 26 Aug, 2020, 08:57: PM
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CBSE 12-science - Chemistry
what is catalysis
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examples of hetrogenous catalyst  
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Example of heterogeneous catalysis 
Asked by yogeshsulakh | 07 Feb, 2020, 09:28: AM
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CBSE 12-science - Chemistry
what is catalyst? Give an example of reaction to show.
Asked by tlb2bpartner | 21 Aug, 2019, 10:28: PM
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CBSE 12-science - Chemistry
name the two groups into which phenomenon of catalysts can be divided give an example of each group with chemical equation involved 
Asked by niharikapabba2605 | 07 Aug, 2018, 11:38: AM
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Explain  with  the  help  of  example  INDUCED  CATALYST
Asked by pardeepkumar2281 | 31 Jul, 2018, 11:40: PM
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CBSE 12-science - Chemistry
Explain  the  THEORY  OF  HETEROGENOUS  CATALYSIS   in  detail  with  the  help  of  examples
Asked by pardeepkumar2281 | 31 Jul, 2018, 11:38: PM
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CBSE 12-science - Chemistry
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Asked by pardeepkumar2281 | 31 Jul, 2018, 11:36: PM
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CBSE 12-science - Chemistry
Give characteristic of a good catalyst.
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
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