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CBSE Class 10 Answered

Write chemical equations for the reactions taking place when- (i) Zinc sulphide is heated in air. (ii) Calcination of zinc carbonate. (iii) When manganese dioxide is heated with aluminium powder.
Asked by Topperlearning User | 08 Jan, 2015, 09:39: AM
answered-by-expert Expert Answer

begin mathsize 12px style 2 ZnS space plus space 3 straight O subscript 2 space space space rightwards arrow with Roasting on top space space 2 ZnO space plus space 2 SO subscript 2 space space
ZnCO subscript 3 space space rightwards arrow with Calcination on top space space ZnO space plus space CO subscript 2 space space
3 MnO subscript 2 subscript left parenthesis straight s right parenthesis end subscript space plus space 4 Al subscript left parenthesis straight s right parenthesis end subscript space rightwards arrow space 3 Mn subscript left parenthesis straight l right parenthesis end subscript space plus space 2 Al subscript 2 straight O subscript 3 subscript left parenthesis straight s right parenthesis end subscript space plus space space Heat end style

Answered by | 08 Jan, 2015, 11:39: AM
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