CBSE Class 10 Science 2016 Term 1 Paper

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Question : 9
Total: 36
(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.
Solution:  
(a) (i) Zinc
(ii) Aluminium
(iii) Magnesium
(iv) Mercury
(b) (i) ZnO+CZn+CO
(ii) 3MgO+2Al3Mg+Al2O3
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