Polymerisation is the process of

Which synthetic fibre is known as "Laboratory's first gift to the loom"?

Name of the fibre that contain a minimum of 85% acrylontrile in their chemical structure

Terylene is a popular form of _______

Plastics was derived from the Greek word_____

Examples of thermoplasts

Properties of plastics include

All Synthetic fibres are obtained from petroleum are obtained from petroleum products

Teflon is a fibre on which water does not stick

Fossil fuels are formed due to ___________

Destructive distillation is the process of heating _____

Compounds made up of only carbon and hydrogen are called ______

Coal which contains around 60% of carbon is

In destructive distillation, coal is heated to

The process of refining of petroleum in refineries is called as

Bituminous rock is also know as black lignite

Petroleum is known as gas in

Rocks that do not let any amount of water to pass through it _____

Gases produced during burning of fossil fuels are

The most abundant metal in the Earth's surface

Helium and krypton occur in combined state

All ores are minerals but all minerals are not ores

Metals and non-metals that are found in room temperature are _____ respectively

Sodium and potassium are the only non-metals that are soft

'↑' represents that the product evolved a gas while '↓' represents that the product formed is a precipitate

Hydrogen acts as a metal and hence is included in the reactivity series

Non-metals react with dilute acids

Duralumin contains ____ % of aluminium, ____ % copper, ___% manganese and magnesium

______ is used in vulcanisation of rubber