Which one of the following species is stable in aqueous solution ?
Which one of the following species is stable in aqueous solution ?
- [JEE MAIN 2016]
- A
$Cr^{2+}$
- B
$MnO_4^{2 - }$
- C
$MnO_4^{3 - }$
- D
$Cu^+$
Similar Questions
Correct statement for $CeO_2$ is/are
$(1)$ It is Diamagnetic in nature
$(2)$ It is a good oxidising agen
$(3)$ It is colourless compound
Correct statement for $CeO_2$ is/are
$(1)$ It is Diamagnetic in nature
$(2)$ It is a good oxidising agen
$(3)$ It is colourless compound
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Which of the following will show increase in weight when kept in magnetic field
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In which of the following ionic radii of chromium would be smallest
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Assertion : Cuprous ion $(Cu^+)$ has unpaired electrons while cupric ion $(Cu^{2+})$ does not.
Reason : Cuprous ion $(Cu^+)$ is colourless whereas cupric ion $(Cu^{2+})$ is blue in the aqueous solution.
Assertion : Cuprous ion $(Cu^+)$ has unpaired electrons while cupric ion $(Cu^{2+})$ does not.
Reason : Cuprous ion $(Cu^+)$ is colourless whereas cupric ion $(Cu^{2+})$ is blue in the aqueous solution.
- [AIIMS 2002]