Question : Which of the following is soda lime?
Option 1: Ca(OH)2 + CaO
Option 2: KOH + CaO
Option 3: CaCl2 + CaO
Option 4: NaOH + CaO
Correct Answer: NaOH + CaO
Solution : The correct option is NaOH + CaO .
Soda lime is typically prepared by mixing water, sodium hydroxide (NaOH), and calcium oxide (CaO). The reaction can be represented as follows: NaOH+CaO→Na 2 CO 3 +Ca(OH) 2 . Soda lime is a chemical absorbent commonly used to remove carbon dioxide (CO 2 ) from closed environments, such as in laboratories or medical applications.
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