MCQ
Which is the weakest base
- A$NaOH$
- B$KOH$
- C$Ca{(OH)_2}$
- ✓$Zn{(OH)_2}$
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$[Co(en)_3]\,[Cr(C_2O_4)_3]$
$[Cu(NH_3)_4]\, [CuCl_4]$
$[Ni(en)_3]\,[Co(NO_2)_6]$
$STATEMENT$-$2$: In water, orthoboric acid acts as a proton donor.