(a) 20cm of a gaseous hydrocarbon M required 150cm of oxygen for complete
combustion. M reacts with one mole of hydrogen gas in the presence of nickel
catalyst to give the hydrocarbon N.
(1) What is the molecular formula of hydrocarbonM
Write the reaction of the hydrocarbon M with hydrogen
Write all isomers of the hydrocarbon N and their IUPAC names
(iv) Giving reason, arrange these isomers in order of increasing boiling point.​

the equation that correctly represent the reaction for formation of ammonia is

n2+ 3h2 → 2nh3 (answer d)

1 mole of nitrogen gas (n2) react with 3 moles of hydrogen gas (h2) to form 2 moles of ammonia ( nh3). this is in a process known as haber process were iron is used as a catalyst and reaction take place that a higher temperature and pressure. the process is exothermic hence energy is released.

c. 4.54 x 10–12 j happens to be correct