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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: Chemistry of Elements - Nitrogen
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry of Elements - Sulphur
MATTER - PROPERTIES AND TRANSFORMATION: Organic Chemistry - Hydrocarbons
MATTER - PROPERTIES AND TRANSFORMATION: Principles Of Chemistry - Formulae, Moles And Equations
MATTER - PROPERTIES AND TRANSFORMATION: Principles Of Chemistry - Gaseous State
MATTER: PROPERTIES AND TRANSFORMATION: Principles Of Chemistry - Solutions and acid-base titration
PRINCIPLES OF CHEMISTRY: Electrochemistry

The transition metals; iron, cobalt and nickel are ferromagnetic i.e. they have:

Catalytic properties.

Variable oxidation states.

Magnetic properties.

Complex compounds.

Which of the following statements is true regarding iron(II) hydroxide and iron(III) hydroxide?

Iron(II) hydroxide is reddish-brown, and iron(III) hydroxide is dirty green.

Both are soluble in excess ammonia.

Iron(II) hydroxide is a dirty green precipitate, while iron(III) hydroxide is a reddish-brown precipitate.

Iron(II) hydroxide precipitates with alkali, while iron(III) hydroxide does not.

Copper is a reddish-brown solid. It is a good conductor of electricity and heat, hence it extensively used in:

Conducting paper.

Making fridges.

Making electric wires.

Making insulating cables.

Which of the following transition metals is commonly found in human blood (as part of hemoglobin)?

Zinc.

Iron.

Copper.

Chromium.

When concentrated nitric acid reacts with copper, what is the major gaseous product?

Nitrogen dioxide.

Ammonia.

Hydrogen.

Nitrogen monoxide.