EASY
Upper Secondary: IGCSE
IMPORTANT
Earn 100
State three uses of sulfur dioxide.
Important Questions on Some Non-Metals and their Compounds
EASY
Upper Secondary: IGCSE
IMPORTANT
Describe the Contact process for making sulfuric acid, starting with sulfur, and state the conditions.
EASY
Upper Secondary: IGCSE
IMPORTANT
An NPK fertiliser contains the three main elements that plants need, for healthy growth. Which of the three elements are provided by the following fertiliser: ammonium sulfate?
EASY
Upper Secondary: IGCSE
IMPORTANT
An NPK fertiliser contains the three main elements that plants need, for healthy growth. Write a formula for each of the following fertiliser:
i. Ammonium phosphate.
ii. Potassium nitrate.
iii. Ammonium sulfate.
EASY
Upper Secondary: IGCSE
IMPORTANT
Copy the diagram below. Then fill in the common names of the substances.
EASY
Upper Secondary: IGCSE
IMPORTANT
Give three reasons why limestone is an important raw material.
EASY
Upper Secondary: IGCSE
IMPORTANT
Limestone is calcium carbonate, . It is quarried on a huge scale. Which elements does it contain?
EASY
Upper Secondary: IGCSE
IMPORTANT
Limestone is calcium carbonate, . It is quarried on a huge scale. List other important uses of limestone.
EASY
Upper Secondary: IGCSE
IMPORTANT
Powdered limestone is used to treat the waste gases from power stations that burn coal and petroleum. The equation for the reaction that takes place is : .
The calcium sulphite is usually turned into gypsum, which has the formula . What is the full chemical name for gypsum? (Calcium sulphate dihydrate/ Calcium sulphate dihydrogen)
