Question

D. Write 'True' or 'False' for the following statements. Statement True/False
1. A mixture of oxygen and carbon dioxide is used for artificial respiration.
2. Chemical formula for marble is CaSO4.
3. When milkiness of limewater disappears on passing excess of carbon dioxide, the new compound formed is calcium hydrogen carbonate.
4. Dry ice is used for extinguishing fire. 5. Carbon dioxide is used extensively in making soft drinks.​

Answer 1

Answer:

1 false

2 false

4 false

only I know this much