Carbon and Fossil Fuels

Lamp black, an amorphous form of carbon, is prepared by heating kerosene oil in a limited supply of air.

Graphite is an allotropic form of carbon which can be used as a lubricant.

Butane is a major constituent of LPG.

The activity series is a chart of metals listed in order of declining relative reactivity. The top metals are more reactive than the metals at the bottom. Titanium is a transition element and is placed above zirconium and next to scandium.

This option is correct because gasification involves a group of processes that turn biomass into combustible gas by breaking apart the biomass using heat and pressure to produce a combustible gas. The gases can be used as fuel or feedstock material.

Burning of biomass fuels produce methane

Smoke contains carbon particles which are solid, so smoke is a solid - in - gas mixture.

Coal is the most polluting as it releases the maximum amount of solid particulates into the air and also leaves behind a residue after burning.

High calorific value and ease of transport are the characteristics of a good fuel. 

Biogas comprises primarily methane and carbon dioxide and may have small amounts of hydrogen sulphide, moisture and siloxanes.

Carbonisation is the term for the conversion of an organic substance into carbon or a carbon-containing residue through paralysis or destructive distillation.

Kerosene oil is used as fuel for stoves, lamps and for jet aircrafts.

Magnetite is an ore of iron. 

Naphthalene balls are obtained from petroleum by fractional distillation.

Anthracite is the highest rank of coal. It has a carbon content of over 87% on a dry ash-free basis.