The difference in the properties of diamond and graphite can be easily explained in terms their structures are: Diamond is vary hard whereas graphite is soft, density of diamond is more than that of graphite, diamond is bad conductor of electricity whereas graphite is a good conductor and etc.
Some of the most imporant physical properties of Copper are: 1. Copper has a characteristic reddish brown colour. It is highly malleable and ductile at ordinary temperature. It becomes brittle near melting point.
Some of the most important physical properties of Iron are : 1. Pure iron greyish white in color 2. Pure iron greyish white in color 3. 4. It is highly malleable and ductile. 4. It is ferromagnetic, that is, it becomes strongly magnetised when placed in a magnetic field.
Some physical properties of ethane are given below: Ethene is a colorless gas with faint sweetish odor. Ethen is insoluble in water but it dissolves in organic solvents such as benzene, carbon tetrachloride etc.
Some important physical properties of ethyne (acetylene) are given below:- Ethyne (acetylene) is a color less gas with ether-like odour when pure. Ethyne prepared from calcium carbide has garlic odour due to the presence of impurities like phosphine (PH3) and hydrogen sulphide (H2S).
Some physical properties of water are listed below: (i) Pure water is colorless, odorless and tasteless liquid (ii) Pure water freezes atomic 0°C and boils atomic 100°C under 1 atm pressure. (iii) Water is a non-conductor of electricity and heat.
The liquefied petroleum gas (LPG) has been the following characteristics properties: LPG is heavier than air. It is due to this reason that the gas stove using LPG is kept atomic a slightly higher level than the gas cylinder.
The physical properties of various members of a homologous series change regularly with an increase in the molecular mass. Variation of some physical properties in a homologous series of hydrocarbons are described below.
Methane like carbon dioxide, also traps infrared radiations (heat radiations) reflected by the earth. As a result, methane gas also contributes to the greenhouse effect. Actually, a molecule of methane traps twenty times more heat radiations than a carbon dioxide molecule.
Methane burns in excess of air or oxygen with a pale-blue nonluminous flame to give carbon dioxide and water. The combustion reaction is highly exothermic. Therefore, methane is an excellent fuel.