MCQ
Which of the following metal does not show variable valency
- A$Fe$
- B$Hg$
- ✓$Zn$
- D$Cu$
✓
Answer
Correct option: C.
$Zn$
c
(c) $Zn$ shows only $+ 2$ valency.
(c) $Zn$ shows only $+ 2$ valency.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Epoxides are
The vapour pressure of aqueous solution of methanol is
Four successive members of the first row transition elements are listed below with their atomic numbers. Which one of them is expected to have the highest third ionization enthalpy
Which is the major product expected from the following $S_{N^2}$ reaction ?
→The $\pi$ -acid ligand which uses its $d-$ orbital during synergic bonding in its complex compound
→Among the following which is not correct?
The final product formed when acetaldehyde is reduced with sodium and alcohol is
Which of the following metal ions will form complexes with the same magnetic moment and geometry irrespective of the nature of ligands?
An aqueous solution contains $6\%$ and $4 \%$ by weight weak acid $(HA)$ and urea respectively. If depression in freezing point $ \frac{{13.6}}{3}\,^oC$. $K_a$ of $CH_3COOH$ will be [$K_f = 1.8 \,\,K-Kg/mole$]
→(Molecular wight of $HA= 60, \,d_{solution} = 1\,gm/ml$)
The decreasing basicity order of the following amines compounds is
