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Practice Neco, Jamb, SSce, Sat, Gre, Toefel, Gmat, Online

Answer the english question Below by selecting the right option.


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When calcium oxide is heated with carbon, the oxide will




be converted to the
B


decompose to the met
C


melt, producing car
D

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A solution which on treatment with hydrochloric acid produces a colourless, odourless gas which turns lime water milky is most likely to be a




chloride
B


trioxocarbonate( IV)
C


hydroxide
D

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The soft solder used for welding and plumbing is an alloy of




iron and tin
B


lead and zinc
C


iron and zinc
D

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