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Water. — Science STD 8 — Question

Tamilnadu BoardEnglish MediumSTD 8ScienceWater.2 Marks
Question
Write a short note on catalytic nature of water.
✓

Answer

Water acts as a catalyst in a number of reactions. Perfectly dry hydrogen and chlorine gases do not react in the presence of sunlight. However in the presence of traces of water, the reaction takes place with explosion to produce hydrogen chloride

$H _2+ Cl _2 \underset{\text { Sunlight }}{\stackrel{\text { Electrolysis }}{\longrightarrow}} 2 HCl$

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