State and explain the conditions for cis/trans isomerism and how this differs from E/Z isomerism.
cis/trans isomerism requires a double bond for restricted rotation about the bond, two different groups on each carbon of the double bond and at least one of the groups on each carbon of the double bond are the same. E/Z only differs by the fact that the isomers can be assigned E or Z as long as all groups attached to each carbon of the double bond are different and a double bond is still required.
EC
Related Chemistry A Level answers
All answers ▸Explain how fractional distillation works.
The following equilibrium is set up in a glass syringe. 2(NO2) (brown gas) ‹-› N2O4 (colourless gas) ∆H = -58 kJmol-1. Using le Chatelier's principle, predict and explain how heating up the mixture would affect it's appearance.
The shape around the oxygen atom in butan-2-ol is non linear. Predict the shape and angle of the C-O-H bond giving explanations
Q1. Two beakers, A and B, each contain 100.0 cm^3 of 0.0125 mol/dm^3 nitric acid. Calculate the pH of the solution formed after 50.0 cm^3 of distilled water are added to beaker A. Give your answer to 2 decimal places.