question_answer

(a) Name any one metal each which can be extracted by:

(i) reduction with carbon

(ii) electrolytic reduction

(iii) reduction with aluminium

(iv) reduction with heat alone

(b) Write a chemical equation for any of the above four parts.

Answer:

(a)	(i) Zinc                        (ii) Aluminium
	(iii) Magnesium           (iv) Mercury
(b)	(i) \[ZnO+C\to Zn+CO\]
	(ii) \[3MgO+2Al\to 3Mg+A{{l}_{2}}{{O}_{3}}\]