Question 14 Marks
What type of combustion is represented by:
$a.$ Burning of white phosphorus in air at room temperature?
$b.$ Burning of $\text{LPG}$ in a gas stove?
$c.$ Ignition of a cracker?
$d.$ Burning of coal dust in a coal mine?
$a.$ Burning of white phosphorus in air at room temperature?
$b.$ Burning of $\text{LPG}$ in a gas stove?
$c.$ Ignition of a cracker?
$d.$ Burning of coal dust in a coal mine?
Answer
View full question & answer→$a.$ Burning of white phosphorus in air at room temperature is a spontaneous combustion. The type of combustion in which a material suddenly bursts into flames, without the application of any apparent cause is called spontaneous combustion.
$b.$ Burning of $\text{LPG}$ is combustion in which a substance burns rapidly and produces heat and light with the help of external heat.
$c.$ Ignition of a cracker is a combustion in which a substance burns suddenly and produces heat, light and sound with the help of heat or pressure.
$d.$ Burning of coal dust in a coalmine is a spontaneous combustion. The type of combustion in which a material suddenly bursts into flames, without the application of any apparent cause is called spontaneous combustion.
$b.$ Burning of $\text{LPG}$ is combustion in which a substance burns rapidly and produces heat and light with the help of external heat.
$c.$ Ignition of a cracker is a combustion in which a substance burns suddenly and produces heat, light and sound with the help of heat or pressure.
$d.$ Burning of coal dust in a coalmine is a spontaneous combustion. The type of combustion in which a material suddenly bursts into flames, without the application of any apparent cause is called spontaneous combustion.
