Answer: Kerosene was commonly used in lamps because it burns easily: Chemical property : It undergoes change in chemical composition and produces carbon dioxide and water.
The element nickel has a boiling point of 2,913°C: Physical property: There is no change in chemical composition and only the state changes from liquid to gas.
Copper is used to make electrical wire because it is a good conductor: Physical property: there is involvement of electrons and no change in chemical composition
Cesium produces an explosion when it is added to water: Chemical property: It undergoes change in chemical composition
Hydrogen is the least dense of all elements : Physical property: There is no change in chemical composition and hence a physical property.
Explanation: Chemical property is defined as properties in which arrangement of atoms present in the substance changes and leads to formation of new substance.
Physical property is defined as properties which leads to change in shape, size or state of the substance and does not involve formation of new products.
