State reasons for the following:(i) Metals are good conductors of heat. (ii) Addition of some silver to pure gold for making ornaments.(iii) Inability of non-metals for displacing hydrogen from dilute sulphuric acid.

State reasons for the following:(i) Metals are good conductors of heat

1.	State reasons for the following:(i) Metals are good conductors of heat. (ii) Addition of some silver to pure gold for making ornaments.(iii) Inability of non-metals for displacing hydrogen from dilute sulphuric acid.
Answer» Solution :(i) METALS possess free or mobile electrons which are responsible for conduction of heat.(II) Addition of some silver to pure gold makes it hard which is necessary for making ORNAMENTS. (iii) Non-metal cannot provide electrons to convert `H^+`ions to HYDROGEN gas.