MCQ
What can the highest oxidation state of a transition element be equal to?
- A$n s$ electron
- B$(n-1) d$ electron
- ✓$(n-1) d+n s$ electrons
- D$(n+1) d$ electrons
✓
Answer
Correct option: C.
$(n-1) d+n s$ electrons
c
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
Consider the statements $S_1$ and $S_2$:
$S_1$: Conductivity always increases with decrease in the concentration of electrolyte.
$S_2$: Molar conductivity always increases with decrease in the concentration of electrolyte.
The correct option among the following is
→$S_1$: Conductivity always increases with decrease in the concentration of electrolyte.
$S_2$: Molar conductivity always increases with decrease in the concentration of electrolyte.
The correct option among the following is
What is the molarity of ${H_2}S{O_4}$ solution, that has a density $ 1.84\,gm/cc$ at $35\,^oC$ and contains solute $98\%$ by weight ...... $M$
→Tertiary butyl amine is a:
A reaction rate constant is given by $k = 1.2 \times 10^{14} \,e^{-25000/RT} \,sec^{-1}$.It means
→$ \mathrm{Ag}^{+}+\mathrm{NH}_3 \rightleftharpoons\left[\mathrm{Ag}\left(\mathrm{NH}_3\right)^{+}\right] ; \mathrm{k}_1=3.5 \times 10^{-3} $
→$ {\left[\mathrm{Ag}\left(\mathrm{NH}_3\right)\right]^{+}+\mathrm{NH}_3 \rightleftharpoons\left[\mathrm{Ag}\left(\mathrm{NH}_3\right)_2\right]^{+} ; \mathrm{k}_2=1.7 \times 10^{-3}}$
then the formation constant of $\left[\mathrm{Ag}\left(\mathrm{NH}_3\right)_2\right]^{+}$is
The correct stability order for the following species is
→$Image$
Products; Product obtained in this reaction are
Number of compounds from the following which cannot undergo Friedel-Crafts reactions is ............ toluene, nitrobenzene, xylene, cumene, anline, chlorobenzene, $m$-nitroaniline, $m$-dinitrobenzene
→In $Xe{F_2}$ hybridisation of $Xe$ is
→The charge over anode in a galvanic cell is