Combustion And Fuel Test - 1

Natural gas and petroleum are formed from the dead remains of marine plants and animals under geothermal conditions of high temperature and pressure.

The most suitable temperature and pressure conditions for the formation of petroleum is high temperature and high pressure.

Antimony trisulphide and potassium chlorate are used these days to make the head of a matchstick.

Red phosphorus is coated on the rubbing surface that is on the side of a matchbox.

White phosphorus is not used these days because it may undergo spontaneous combustion and hence, its use is not safe.

Catalytic converter is fitted in automobiles to reduce the harmful emissions from its exhaust.
This instrument has a catalyst, which can convert carbon monoxide into carbon dioxide and oxides of nitrogen into gaseous nitrogen. This is a pollution control measure.

Petroleum is formed from the organisms living in the sea. When they die, their bodies settle at the bottom of the sea and get covered with layers of sand and clay. Over a period of time, they get converted into petroleum.

This is the correct option. Liquefied petroleum gas consists mainly of butane.

Coke is formed by the destructive distillation of coal and is not a component of petroleum.

Compressed natural gas, commonly known as CNG, is an important automobile fuel which has methane as the main component.

All of the above mentioned fuels contain hydrogen.

Coal gas is a mixture of gases (chiefly hydrogen, methane, and carbon monoxide) obtained by the destructive distillation of coal.

Water gas is a mixture of carbon monoxide and hydrogen.