Question:
Match the following items in column I with the corresponding items in column II.
Correct Option: , 2
Solution:
$\mathrm{Na}_{2} \mathrm{CO}_{3} \cdot 10 \mathrm{H}_{2} \mathrm{O} \rightarrow$ Solvay process
$\mathrm{Mg}\left(\mathrm{HCO}_{3}\right)_{2} \rightarrow$ Temporary hardness
$\mathrm{NaOH} \rightarrow$ Castner-kellner cell
$\mathrm{Ca}_{3} \mathrm{Al}_{2} \mathrm{O}_{6} \rightarrow$ Portland cement
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