Q. 963.8( 5 Votes )

A metal X which is resistant to corrosion is produced by the electrolysis of its molten oxide whereas another metal Y which is also resistant to corrosion is produced by the reduction of its oxide with carbon. Metal X can be used in powder form in thermite welding whereas metal Y is used in making cathodes of ordinary dry cells. (a) Name the metals X and Y.
(b) Which of the two metals is more reactive: X or Y?
(c) Name one ore or metal X. Also write its chemical formula.
(d) Name one ore of metal Y. Also write its chemical formula.
(e) Name one alloy of metal X and one alloy of metal Y.

Answer :

(a) X is aluminium and Y is zinc, this can be determined by the above given statement.

(b) Among the two metals X and Y, X is more reactive then that of the Y.

(c) the name of the ore is Bauxite and its chemical formula is Al2O3.2H2O.

(d) The name of the ore of metal Y is Calamine and its chemical formula is ZnCO3.

(e) The name of the alloy of metal X is Duralumin and the name of the alloy of metal Y is Brass.

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