CO2 Properties: Understanding Dry Ice
Option 1 Analysis: Solubility
Carbon dioxide (CO2) is soluble in water, forming carbonic acid (H2CO3). It also dissolves in organic solvents like ethanol and acetone. Therefore, the statement claiming it is *not* soluble is incorrect.
Option 2 Analysis: Molecular Structure
CO2 is a molecule with a linear structure (O=C=O). The bonds between carbon and oxygen are covalent. The term "electrovalent" refers to ionic bonds, which do not accurately describe CO2. This statement is incorrect.
Option 3 Analysis: Appearance and Smell
Under normal conditions, CO2 is an invisible, colorless gas. It is also odorless. It does not possess a white foggy appearance or a pungent smell. This statement is incorrect.
Option 4 Analysis: Solid CO2
The solid form of carbon dioxide (CO2) is indeed called dry ice. This name comes from its property of sublimating directly from a solid to a gas at standard atmospheric pressure, without passing through a liquid phase, resembling how dry ice avoids leaving moisture.
Conclusion
Based on the analysis of each property, the only true statement regarding CO2 is that its solid form is known as dry ice.
Similar Questions
- The boiling point of liquid nitrogen is:
Which law governs the relationship between the pressure and volume of a fixed amount of gas at constant temperature?
Which of the following is a characteristic feature of the gaseous state of matter?
- Which one of the following substances undergoes sublimation?
Which of the following statements is true for water when it is cooled from 4°C to 0°C?
Important Questions from States of Matter
Which is correct statement ?
According to Charle's Law, which of the following is constant?
Which of the following statements is/are correct?
I. Mass vapor is obtained in the air by evaporation and transpiration.
II. Water circulation between the oceans and the water bodies is called the water cycle.
Which state of matter is characterized by a high-energy collection of ionized particles, where atoms have lost or gained electrons, making it electrically conductive, and is the most common state of matter in the universe?
A change of state directly from solid to gas without changing into liquid state is called
