On heating pyrolusite with $KOH$ in the presence of air,we get:
- A$KMnO_4$
- B$K_2MnO_4$
- C$Mn(OH)_2$
- D$Mn_3O_4$
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Which from the following alloys is used in gas turbine engines?
$Cr_2O_7^{2-} \underset{Y}{\overset{X}{\longleftrightarrow}} 2CrO_4^{2-}$,$X$ and $Y$ are respectively
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View SolutionConsider the following reactions:
$K_2Cr_2O_7$ $\xrightarrow[-H_2O]{KOH} [A]$ $\xrightarrow[-H_2O]{H_2SO_4} [B] + K_2SO_4$
The products $[A]$ and $[B]$,respectively,are:
$K_2Cr_2O_7$ $\xrightarrow[-H_2O]{KOH} [A]$ $\xrightarrow[-H_2O]{H_2SO_4} [B] + K_2SO_4$
The products $[A]$ and $[B]$,respectively,are:
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View SolutionWhich of the following statements regarding copper salts is not true?
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