Which of the following species is not planar?
NO3−\text{NO}_3^-NO3−
ClF3\text{ClF}_3ClF3
SF4\text{SF}_4SF4
C2H4\text{C}_2\text{H}_4C2H4
31 exam-style questions on OCR A A Level Chemistry Bonding and structure. Each one has a worked solution and a mark scheme showing where the marks go.