GENERAL KNOWLEDGE

GK

CHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
An example of a gas is:
A
a rock
B
carbon dioxide
C
water
D
a pencil
Explanation: 

Detailed explanation-1: -Gas is a type of matter that has no defined shape or volume. Gases can be made up of a single element, such as hydrogen gas (H2), a compound, such as carbon dioxide (CO2), or a mixture of several gases, such as air.

Detailed explanation-2: -Air is the most common example of gas. It is also a mixture of numerous gases, including nitrogen, oxygen, carbon dioxide, hydrogen, water vapour, and trace amounts of other substances like argon, neon, and krypton. Nitrogen is the most abundant element in air, accounting for 78 percent of its volume.

Detailed explanation-3: -Carbon dioxide is a colorless and non-flammable gas at normal temperature and pressure. Although much less abundant than nitrogen and oxygen in Earth’s atmosphere, carbon dioxide is an important constituent of our planet’s air. A molecule of carbon dioxide (CO2) is made up of one carbon atom and two oxygen atoms.

Detailed explanation-4: -Carbon Dioxide (CO2) Carbon dioxide is a colorless, odorless gas. It is produced both naturally and through human activities, such as burning gasoline, coal, oil, and wood. In the environment, people exhale CO2 which contributes to CO2 levels in the air.

Detailed explanation-5: -Acetylene. Air. Argon. Carbon dioxide. Carbon monoxide. Helium. Natural gas. Neon. More items •23-Mar-2021

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