1.

When \[NaOH\] crystals are left in open air, they acquire a fluid layer around each crystal as [CPMT 1974]

A. They start melting
B. They absorb moisture from air
C. They react with air to form a liquid compound
D. They absorb \[C{{O}_{2}}\] from air
Answer» C. They react with air to form a liquid compound


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