EASY
Upper Secondary: IGCSE
IMPORTANT
Earn 100
Explain why ammonia is an important chemical.
Important Questions on Some Non-Metals and their Compounds
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Say how the raw materials (nitrogen and hydrogen) are obtained, for making ammonia.
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
State the conditions used in the manufacture of ammonia, and explain the choice of conditions.
EASY
Upper Secondary: IGCSE
IMPORTANT
Name three sources of sulfur.
EASY
Upper Secondary: IGCSE
IMPORTANT
State three uses of sulfur dioxide.
EASY
Upper Secondary: IGCSE
IMPORTANT
Describe the Contact process for making sulfuric acid, starting with sulfur, and state the conditions.
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Give the typical acid properties of dilute sulfuric acid.
HARD
Upper Secondary: IGCSE
IMPORTANT
Sketch the carbon cycle, and give equations for these three reactions linked to the carbon cycle: respiration, combustion of fuel such as methane, and photosynthesis.
EASY
Upper Secondary: IGCSE
IMPORTANT
An NPK fertiliser contains the three main elements that plants need, for healthy growth. Name the three elements.
