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CHEMISTRY IN SOCIETY: Fertilizers
ENVIRONMENTAL EDUCATION: Chemistry In Society - Extraction Of Metals
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry Of Elements - Alkali metals and alkaline earth metals
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry Of Elements - Identification Of Ions
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry Of Elements - Salts
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry Of Elements - Transition metals
MATTER - PROPERTIES AND TRANSFORMATION: Principles Of Chemistry - Formulae, Moles And Equations
MATTER: PROPERTIES AND TRANSFORMATION: Rates Of Reaction
MATTER: PROPERTIES AND TRANSFORMATION: Reversible Reactions
PRINCIPLES OF CHEMISTRY: Electrochemistry
PRINCIPLES OF CHEMISTRY: Gaseous State
5/76 MCQs for:
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry Of Elements - Alkali metals and alkaline earth metals
When quicklime (calcium oxide) reacts with water, what is formed?
Calcium carbonate.
Calcium hydroxide.
Calcium chloride.
Calcium sulphate.
… shiny, silvery solids, soft and easily cut with scalpel.
Alkaline earth metals.
Metals.
Good metals.
Alkali metals.
When magnesium metal reacts with cold water, what is formed?
Magnesium oxide and hydrogen gas.
Magnesium carbonate and oxygen gas.
Magnesium hydroxide and hydrogen gas, but the reaction is very slow.
No reaction occurs.
What is the effect of heat on magnesium hydroxide (Mg(OH)₂)?
It melts without decomposition.
It reacts with carbon dioxide.
It decomposes to magnesium and oxygen.
It decomposes to magnesium oxide and water.
What happens when dilute hydrochloric acid is added to magnesium metal?
Hydrogen gas is produced rapidly.
No reaction occurs.
Magnesium oxide is formed.
Oxygen gas is produced slowly.
