Question

Alcohol, CNG and LPG are inflammable substances. (True or False). Also write the false statements in their correct form.

• A. True
• B. False

Answer 1

The correct option is B False

Flammable substances

• Flammability is the ease with which a combustible substance can be ignited, causing fire or combustion or even an explosion.
• The substances which have flammability are called flammable substances.
• Example: Alcohol, CNG, LPG etc.

Alcohol:

• Alcohol is a type of organic compound that carries at least one hydroxyl functional group $(-\mathrm{OH})$ bound to a saturated carbon atom.
• Hydroxyl group makes alcohol polar.
• Due to the presence of hydrogen bonding, they have a high boiling point.
• The flashpoint of alcohol is $12.8°\mathrm{C}$, which makes it flammable material.

CNG [Compressed Natural Gas]

• Its primary use is as an alternative for fuel in automobiles.
• The primary component in CNG is methane.
• It produces relatively lower quantities of greenhouse gases (in comparison with LPG).
• It is relatively safe as it disperses rapidly into the air.

LPG [Liquified Petroleum Gas]

• It has various uses such as heating and cooking in homes. LPG also has industrial and agricultural uses.
• The primary component of LPG is propane and butane.
• It produces relatively large amounts of carbon dioxide, a greenhouse gas.
• It is highly flammable as it is much heavier than air.

Thus, the given statement is a false statement.

correct statement: Alcohol, CNG, and LPG are flammable substances.