Chemistry - Complete Pblock- Question with Solution | TestHub
ChemistryComplete Pblock-p-Block 17,18Medium2 minQB
ChemistryMediumsingle choice
Among the following reactions of hydrogen with halogens, the one that requires a catalyst is :
Options:
Answer:
A
Solution:
Explain the Question:
Identify -halogen reaction needing catalyst.
Concept: Reactivity trend of halogens.
Solution:
Reactivity of halogens decreases from F2 to I2 .
• H2 + F2 is explosive even in dark → no catalyst needed.
• H2 + Cl2 occurs in presence of light → no catalyst needed.
• H2 + Br2 occurs on heating → no catalyst needed.
• H2 + I2 is least reactive and requires Pt catalyst for reaction.
Stream:JEESubject:ChemistryTopic:Complete Pblock-Subtopic:p-Block 17,18
⏱ 2mℹ️ Source: QB
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