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Q.
Drying agent which react with $CO_{2}$ and removes water vapours is
NTA AbhyasNTA Abhyas 2022
Solution:
Calcium oxide $( CaO )$ i.e., quick lime is a drying agent and can react with $CO _2$ and water vapours as follows
$
\begin{array}{l}
CaO + CO _2 \rightarrow CaCO _3 \\
CaO + H _2 O \rightarrow Ca ( OH )_2
\end{array}
$