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1. |
Which one of the following metals will give blue ash when its salt is heated with \[N{{a}_{2}}C{{O}_{3}}\] solid and \[Co{{\left( N{{O}_{3}} \right)}_{2}}\] on a charcoal piece [MNR 1987] |
A. | \[Cu\] |
B. | \[Mg\] |
C. | \[Al\] |
D. | \[Zn\] |
Answer» D. \[Zn\] | |