Answer: Option (A) is the correct answer.
Explanation:
Volatility is defined as the ability of a substance to readily evaporate into the atmosphere.
A small chain of hydrocarbon will have molecules in a small surface area. Moreover, a small chain hydrocarbon will have lesser dispersion forces due to which molecules are able to evaporate into the atmosphere easily.
Short carbon chain hydrocarbon will also be less viscous in nature.
Therefore, hydrocarbons consisting of short carbon chains are more volatile than hydrocarbons with longer chains.
Answer:
Nitrogen, water
Explanation:
"Most common nonmetallic substances such as halogens, halogen acids, sulfur, and phosphorus react with the alkali metals."
Chemical change cannot be seen where as physical change can be seen.
Chemical change eg sugar in a coffee & Physical change eg wood into a furniture
The state of water is liquid