(a)[1]
State which of molecules A to I is an element containing a triple bond.
(b)[1]
State which of molecules A to I is a product of photosynthesis.
(c)[1]
State which of molecules A to I is used as a fuel.
(d)[1]
State which of molecules A to I turns limewater milky.
(e)[1]
State which of molecules A to I undergoes a substitution reaction with alkanes.
(f)[1]
State which of molecules A to I is a colourless liquid at r.t.p.
(g)[1]
State which of molecules A to I is unsaturated.
(h)[1]
State which of molecules A to I is 21% of clean, dry air.
(i)[1]
State which of molecules A to I is a reactant in the Haber process.