Question

What is the chemical formula of slaked lime?

• A. $\text{NaOH}$
• B. ${\text{Ca(OH)}}_2$
• C. ${\text{Na}}_2{\text{CO}}_3$
• D. ${\text{NaHCO}}_3$

Answer 1

The correct option is B

${\text{Ca(OH)}}_2$

Calcium hydroxide is an inorganic compound with a chemical formula ${\text{Ca(OH)}}_2$. Its common name is slaked lime and is also known as pickling lime, caustic lime or hydrated lime. It is insoluble in water and can react with chlorine gas, forming bleaching powder.