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CHEMISTRY OF THE ELEMENTS: Nitrogen
Chemistry Of The Elements: Sulphur
MATTER - PROPERTIES AND TRANSFORMATION: Acidic And Alkaline Solutions
MATTER - PROPERTIES AND TRANSFORMATION: Atomic Structure And The Periodic Table
MATTER - PROPERTIES AND TRANSFORMATION: Atoms
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry of Elements - Carbon
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry of Elements - Hydrogen
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry of Elements - Oxygen
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry of Elements - Phosphorus
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry of Elements - The Halogens
MATTER - PROPERTIES AND TRANSFORMATION: Structure And Bonding
5/72 MCQs for:
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry of Elements - Oxygen
Which of these oxides is generally insoluble in water and basic?
Nitrogen dioxide (NO₂).
Sulfur dioxide (SO₂).
Carbon dioxide (CO₂).
Iron(III) oxide (Fe₂O₃).
What is the role of manganese(IV) oxide in the preparation of oxygen from potassium chlorate(V)?
It acts as a catalyst.
It is a product.
It is a reactant.
It prevents the reaction from occurring.
What is the definition of reduction in terms of oxygen?
Loss of electrons by a substance.
Addition of oxygen to a substance.
Removal of oxygen from a substance.
Gain of hydrogen by a substance.
Which of the following oxides is a gas at room temperature?
Iron(III) oxide (Fe₂O₃).
Magnesium oxide (MgO).
Carbon dioxide (CO₂).
Sodium oxide (Na₂O).
Copper does not react with oxygen at room temperature. What is required for it to form copper(II) oxide?
Heating.
Light.
High pressure.
Presence of a catalyst.
