BPSC 46th Exam Prelims 2004 Solved Paper

Ethylene gas is used for the artificial ripening of fruits. Ethylene is a hydrocarbon having the chemical formula ${\mathit{C}}_2{\mathit{H}}_4$ or ${\mathit{H}}_2\mathit{C}={\mathit{C}\mathit{H}}_2$ It is a coluorless flammable gas with a faint "sweet and musky" odour. It is the simplest alkene. Ethylene is widely used in the chemical industry, and its worldwide production exceeds that of any other organic compound.