WBCS.LIVE practice question

Which of the following is used in 'Dry Ice' because it sublimes directly from solid to gas?

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. Solid Nitrogen
  2. Solid Oxygen
  3. Solid Carbon Dioxide
  4. Solid Hydrogen

Correct answer and explanation

Correct answer: Solid Carbon Dioxide

Explanation: āœ… Correct Answer: C) Solid Carbon Dioxide šŸ“š Explanation: Dry ice is the solid form of carbon dioxide ($CO_2$) and is kept at a temperature of approximately -78.5Ā°C. It is called "dry" because it undergoes sublimation, meaning it turns directly into gas without melting into a liquid state. It is commonly used as a cooling agent for preserving food and biological samples during transport.