WorksheetsFertilisers
Total questions: 10
Worksheet time: 13mins
What are the three essential elements that plants require?
nitrogen phosphate potassium
nitrogen sulphur potassium
nitrogen potassium phosphorous
nitrogen potassium polonium
what is the catalyst used in the Haber process?
iron
platinum
silver
gold
What is produced in the Ostwald process?
ammonia
nitrogen
nitrate
nitric acid
Which of the following is untrue for the haber process?
ammonia gas is cooled and collected as a liquid
a really high temperature is used to speed up the reaction
hydrogen and nitrogen are the raw materials for the reaction
too high a pressure is unsafe
ammonia reacts with acids to produce ammonium salts
true
false
ammonia is a very acidic gas
true
false
Which of the following would be a suitable fertiliser?
nitrogen dioxide
potassium nitrate
copper phosphate
nitrogen oxide
What is the percentage of nitrogen in potassium nitrate ?
25.7%
15.2%
20%
13.8%
What type of bonding is in ammonia?
metallic
covalent molecular
covalent network
ionic
Fertilisers are salts. what type of reaction produces fertilisers?
addition
precipitation
neutralisation
condensation
