MCQ
Dry ice is:
- A
- B
- C
- D
Explanation:
Solid CO2 is called as dry ice.
Dry ice is solid carbon dioxide. It is primarily used to cool food products at lower temperature than what water ice can provide. It is called dry ice because it sublimes and doesn't leave any residue i.e. changes from solid to gaseous state without turning to liquid.
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| S.No | Column I | | Column II |
| a | 9.033 × 1024 atoms | i | 46g of He |
| b | 2 moles of Na | ii | 15 moles |
| c | 11.2 L of O2, at STP | iii | 3.011 × 1023 molecules |
| d | 22g of CO2 | iv | 16g |

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