Chemistry 1996 WAEC Past Questions

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Ammonia gas is suitable for performing the 'Fountain' experiment because the gas is

A. colourless
B. a cooling agent
C. alkaline to litmus
D. a reducing agent
E. very soluble in water

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Which of the following metals will be the most suitable for use where lightness and resistance to corrosion are of importance?

A. Lead
B. Copper
C. Iron
D. Calcium
E. Aluminium

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What amount of copper is deposited when 13.0g of zinc reacts with excess copper (ll) tetraoxosulphate (IV) solution according to the following equation? Zn _(s) + CuSO_4(aq) → ZnSO_4(aq) + Cu _(s) [Cu =63,5, Zn = 65]

A. 0.1 mole
B. 0.2mole
C. 0.3 mole
D. 0.4 mole
E. 0.5 mole

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The products formed when sodium hydrogen trioxocarbonate (IV) is heated strongly are

A. carbon (IV) oxide and sodium hydride
B. carbon (IV) oxide and soudium trioxocarbonate (IV)
C. sodium trioxocarbonate (IV) and steam
D. carbon (IV) oxide and steam
E. sodium trioxocarbonate (IV) carbon (IV) oxide and steam

View Answer & Discuss (1) WAEC 1996

The following are properties of transition metals except

A. variable oxidation states
B. tendency to form complext ions
C. formation of coloured ions
D. ability to act as catalyst
E. low melting points

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Chemistry 1996 WAEC Past Questions

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