On heating potassium permanganate,one of the following compounds is not obtained:
- A$O_2$
- B$MnO$
- C$MnO_2$
- D$K_2MnO_4$
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When $MnO_2$ is fused with $KOH$ in the presence of air,a colored compound is formed. Identify the compound and its color.
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View SolutionMatch Column $A$ with Column $B$:
Column $A$ Column $B$ $(1)$ Brass $(a)$ $Ni$ $(60\%)$,$Cr$ $(40\%)$ $(2)$ Bronze $(b)$ $Cu$ $(80\%)$,$Sn$ $(20\%)$ $(3)$ Cupronickel $(c)$ $Cu$ $(90\%)$,$Sn$ $(10\%)$ $(4)$ Nichrome $(d)$ $Cu$ $(70\%)$,$Zn$ $(30\%)$ $(e)$ $Cu$ $(75-85\%)$,$Ni$ $(15-25\%)$
| Column $A$ | Column $B$ |
|---|---|
| $(1)$ Brass | $(a)$ $Ni$ $(60\%)$,$Cr$ $(40\%)$ |
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| $(4)$ Nichrome | $(d)$ $Cu$ $(70\%)$,$Zn$ $(30\%)$ |
| $(e)$ $Cu$ $(75-85\%)$,$Ni$ $(15-25\%)$ |
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