Question:
The chemical formula of chalk is:
The chemical formula of chalk is:
Show Hint
Calcium carbonate is widely used in construction (cement), as an antacid, and in school chalk.
Updated On: Oct 27, 2025
- MgCO$_3$
- Na$_2$CO$_3$
- CaCO$_3$
- Mg(HCO$_3$)$_2$ \bigskip
Hide Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Chalk is chemically calcium carbonate (CaCO$_3$), which is commonly found in limestone and shells.
Was this answer helpful?
0
0
Top Questions on Acids, Bases And Salts
- Write chemical equations to show what happens when an acid reacts with a:
Write chemical equations to show what happens when an acid reacts with a:
(i) Metal
(ii) Base
(iii) Carbonate
Write the name of the main product formed in each case- CBSE Class X - 2025
- Science
- Acids, Bases And Salts
- The chemical formula of bleaching powder is
- Bihar Board X - 2025
- Science
- Acids, Bases And Salts
- The ratio of HCl and HNO$_3$ in aqua regia is
- Bihar Board X - 2025
- Science
- Acids, Bases And Salts
- What are acids? Give any two examples. Explain the effect of an acid on an indicator.
- Bihar Board X - 2025
- Science
- Acids, Bases And Salts
- What type of salt is Pb(OH)NO$_3$?
- Bihar Board X - 2025
- Science
- Acids, Bases And Salts
View More Questions
Questions Asked in Bihar Class X Board exam
- One day the old emperor Shah Jahan became ill. His son Aurangzeb, who always wanted to be the emperor, put his father in a jail. Jahanara Begum, the eldest child of Shah Jahan, did not leave her father and went to jail along with him. She said, “I shall share the suffering of my father. He needs me in his old age, and I shall never leave him.” Shah Jahan spent seven years in jail before dying. During that period, Princess Jahanara stayed there and took care of him. After the death of her father, she returned to her own palace and continued to live there till her death. Before her death, however, she gave away all she had to the needy and the poor. Upon her death, Aurangzeb gave her the posthumous title : Sahibat-uz-Zamani (mistress of age).
- Bihar Board X - 2025
- Reading Comprehension
- Choose the passive voice of : “Have this lock broken.”
- Choose the most suitable translation : वे लोग विद्यालय जा चुके हैं।
- Bihar Board X - 2025
- Comparative Literature and Translations Studies
- Choose the most suitable translation : उसने मुझे सोया हुआ पाया।
- Bihar Board X - 2025
- Comparative Literature and Translations Studies
- Choose the most suitable translation : नियमित रूप से अध्ययन करो।
- Bihar Board X - 2025
- Comparative Literature and Translations Studies
View More Questions