Respuesta :
Answer: The correct answer is option (a).
Explanation:
Saturated hydrocarbons: These are the hydrocarbons in which only single bond between the carbon-carbon atom is present.On burning they produces carbon-dioxide gas , water and heat. Also during burning they doesn't produces black soots.
Natural gas is mixture of hydrocarbons.These are the saturated hydrocarbons like: methane, ethane, propane and butane.
Where as salt in a water is an aqueous solution of sodium and chloride ions.
Carving stone with hammer and chisel doesn't involve use of hydrocarbons. And the same reason goes for the bending steel by hands too.
Hence, the correct answer is option(a).
