An aqueous solution of compound X reacts with aqueous sodium hydroxide to form a green precipitate and then aluminium powder is added. The mixture is heated and a gas that turns damp red litmus paper blue is given off. What is X?
A ammonium nitrate
B copper(II) chloride
C iron(II) nitrate
D iron(III) chloride
Answers: 3
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An aqueous solution of compound X reacts with aqueous sodium hydroxide to form a green precipitate a...
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