MCQ
Which of the following order is not correct
- A$Zn > Cd > Hg$ Heat of atomisation
- B$Mn_2O_7 > MnO_2 > MnO$ Acidic strength
- C$CrO_3 > MoO_3 > WO_3$ oxidising nature
- ✓$HgCl_2 > CdCl_2 > ZnCl_2$ Ionic character
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This polymer $(B)$ is obtained when acetone is saturated with hydrogen chloride gas, $B$ can be
Information:
$(A)\,Cu$ $(II)$ complexes are always paramagnetic
$(B)\,Cu$ $(I)$ complexes are generally colourless
$(C)\,Cu$ $( I )$ is easily oxidized
$(D)$ In Fehling solution, the active reagent has $Cu$ $( I )$
$Zn_{(s)} +Cu^{+2}_{(aq)} \to Zn^{2+}_{(aq)} +Cu_{(s)}$
$[E^o_{Cu^{+2 /Cu}} = 0.34\,V$ , $E^o_{Zn^{2+} /Zn} = -0.76\,V ]$