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WorksheetsN5 Fertilisers and Nuclear
Total questions: 20
Worksheet time: 12mins
Which of these is the correct formula for ammonia?
NH3
NH4
NH3+
NH4+
Which of these is the correct formula for ammonium?
NH3
NH4
NH3+
NH4+
Name the element which is the catalyst in the Haber process
(a)
Name the element which is the catalyst in the Ostwald process
(a)
Which type of radiation is a helium nucleus?
alpha
beta
gamma
Which type of radiation is a fast moving electron?
alpha
beta
gamma
Which process makes ammonia?
Haber
Ostwald
Which type of radiation can be stopped by paper?
(a)
"Radioactive decay is random"
True
False
Temperature affects radioactive decay
True
False
24 Na is a beta emitter with a half life of 15 hours. What percentage of the original isotope would remain after 45 hours?
12.5
25
75
87.5
Which two subatomic particles have a mass of 1
protons and neutrons
protons and electrons
neutrons and electrons
Which elements are present in a phosphate ion?
phosphorus only
phosphorus and hydrogen
phosphorus and oxygen
phosphorus and hydrogen and oxygen
What is the Relative Atomic Mass of potassium?
19
20
39
40
What name are the group 7 elements known as?
(a)
Which type of nuclear radiation is not affected by a charged plate?
alpha
beta
gamma
What is the charge on a phosphide ion?
1-
2-
3-
4-
Which of these is not a group ion?
sulfide
sulfate
sulfite
Which type of radiation can only be stopped by concrete/lead?
alpha
beta
gamma
What is the shape of ammonia?
linear
angular
trigonal pyramidal
tetrahedral
