The proton donating property of a substance is called protogenic property.

A base is a donor of an electron pair.

If Kb for the anion is smaller than Ka for the cation, then the solution must be acidic.

The pOH of 0.001M NaIH solution is 2.

Most organic acids are weak acids.

Oxygen is also present in haemoglobin of the blood.

The neutral atoms of most of the transition elements have an essential electronic configuration of ___.

Manganese is also used for spacecraft, ships and marine equipment.

Degradation of pesticides can occur after application on the farm.

Hexavalent chromium is more toxic than trivalent chromium.

Phosphorus can be found in a gaseous state in the biogeochemical cycle.

DDT and PCB belong to___.

Arsenic is mostly in the form of ___ valence in nature.

Sulphuric acid may also be produced from dimethyl sulphide emitted to the atmosphere by plankton species.

Unlike many other cycling elements, phosphorus cannot be found in the air.

Traces of radioactive materials can be found in the body, mainly naturally occurring ___.

Tetraethyllead was used as an anti-knocking agent.

In pyrolysis, much of the organic content wastes in the reactor produce a mixture of hydrogen and carbon dioxide.

An amino acid is a protein monomer.

Nylon is a___.

Butanal contains ___ functional group.