ICSE Class 10 Chemistry 2017 Solved Paper

Question : 59 of 86

Marks: +1, -0

Write balanced chemical equations to show how

{\SO}_3

is converted to Sulphuric acid in the contact process.

Solution:

\; {\SO}_3+ {{\H}_2 {\SO}_4}↙{(\conc.)} →{ {\H}_2 {\S}_2 {\O}_7}↙{(\aleum)}

\; {\H}_2 {\S}_2 {\O}_7+ {\H}_2 {\O} → 2 {\H}_2 {\SO}_4

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