Sample Questions on Calcium Oxide
Question 1: What is the Chemical Formula of Oxide?
Answer:
Chemical Formula of Calcium Oxide is CaO.
Question 2: How Calcium oxide is prepared?
Answer:
Calcium oxide is prepared by the process called calcination which involves heating the calcium carbonate (CaCO3) at high temperature, causing it to decompose and release carbon dioxide (CO2), leaving behind calcium oxide (CaO).
CaCO3(g)→CaO(s) + CO(g)
Question 3: What is the primary use of calcium oxide in industry?
Answer:
The primary use of calcium oxide in the industry is in the production of cement. Calcium oxide plays an important in the manufacturing of Portland cement, which is the most widely used type of cement in construction and building applications.
Question 4: What is the state of calcium oxide at room temperature?
Answer:
Calcium oxide is a solid at room temperature.
Question 5: What are the physical properties of calcium oxide?
Answer:
Physical properties of calcium oxide are:
- Physical State: White crystalline solid or powder at room temperature.
- Melting Point: High melting point at approximately 2,572 degrees Celsius (4,662 degrees Fahrenheit).
- Boiling Point: No distinct boiling point; undergoes thermal decomposition at high temperatures.
- Density: Relatively dense with a density of about 3.34 grams per cubic centimeter.
- Solubility: Sparingly soluble in water, forming calcium hydroxide when in contact with water.
- Odor and Taste: Lacks a characteristic odor or taste.
Calcium Oxide
Calcium oxide is a white, caustic alkaline which is solid at room temperature. Calcium Oxide is known as quicklime is a material which is a commonly used material. Calcium Oxide reactivity with water, along with its other chemical properties, makes it a very important chemical in various fields.
In this article we will learn in detail about calcium oxide, its properties, applications and other details in detail.