Diamond is a poor conductor of electricity but is a good conductor of heat while Graphite is a good conductor of heat and electricity.

Atomic number of Potassium is greater than that of chlorine. Atomic number of various elements are as 

Potassium-19

Chlorine-17

Aluminium-13

Suplhur-16

• Incineration is a waste treatment process that involves the combustion of organic substances contained in waste materials.
• Incineration and other high-temperature waste treatment systems are described as "thermal treatment". Incineration of waste materials converts the waste into ash, flue gas, and heat.

• Gammexane is an insecticide that is the gamma isomer of benzene hexachloride.
• It is also known as lindane.
• Benzene hexachloride is any of several stereoisomers of 1, 2, 3,4,5,6 hexachlorocyclohexane formed by the lightinduced addition of chlorine to benzene.

Brownish film formed on iron when left in open is called rust and the process called as Rusting. It occurs when iron is exposed to oxygen in air and water or water vapor or in other words, when iron is left in open the brown coloured film deposited on the iron as it oxidized with the atmospheric oxygen which is known as Iron Oxide.

Bisphenol A (BPA) is an organic synthetic which is a colorless solid that is soluble in organic solvents, but poorly soluble in water. It is a chemical monomer used primarily in the production of polycarbonate plastic and epoxy resins. Polycarbonate is used in food contact materials such as beverage bottles, infant feeding bottles, food containers, processing equipment and other articles.

Iron filings can be separated from a heterogenous mixture using the technique of Magnetization.

Water is resulted when hydrogen peroxide readily loses active oxygen.

The chemical formula for washing soda is Na₂CO₃ and it is also known as sodium carbonate. 

Washing soda, also known as soda ash, is a chemical compound that can be used to remove stubborn stains from laundry and is an essential component in most homemade laundry detergent powders, liquid or single pod formula. Washing sodashould not be confused with baking soda.

German silver has a colour resembling silver, but is an alloy of primarily Cu, Ni, and Zn.