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
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$Pt ( s )\left| H _{2}( g , 1 bar )\right| HCl ( aq \cdot, pH =1)| AgCl ( s )| Ag ( s )$
The $pH$ of aq. HCl required to stop the photoelectric current from $K \left( w _{0}=2.25 eV \right),$ all other conditions remaining the same, is..........$\times 10^{-2}$ (to the nearest integer).
Given, $2.303 \frac{ RT }{ F }=0.06 V ; E _{ AgC1|Ag|C ^{-}}^{0}=0.22\, V$
