MCQ
Outer electronic configuration of f-block elements is:
- A(n + 1)f1-14(n - 1)d0-1ns2
- B(n - 2)f1-14(n + 1)d0-1ns2
- C(n - 2)f1-14(n - 1)d0-1ns2
- DNone of the above.
✓
Answer
- (n - 2)f1-14(n - 1)d0-1ns2
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
The structure of external most shell of inert gases is
The acidic, basic and amphoteric oxides, respectively, are
Second ionisation potential of $Li, Be, B$ is in the order
→Isomers of propionic acid are
For the reaction $2A_{(g)} \rightleftharpoons B_{(g)} + 3C_{(g)}$, at a given temperature $K_c = 16$, what must be the volume of flask. If mixture of $2\, mole$ each of $A, B, C$ exist at equilibrium?
→What amount of energy (in $KJ$ ) is released in the combustion of $5.8\,gm$ of $C_4H_{10}\,(g)$ ?
→$2{C_4}{H_{10(g)}}\, + \,13{O_{2(g)}}\, \to \,8C{O_{2(g)}}\, + \,10{H_2}{O_{(l)}}\,;$ $\Delta {H^o}\, = \, - \,5756\,KJ$
Hot concentrated sulphuric acid is a moderately strong oxidizing agent. Which of the following reactions does not show oxidizing behaviour?
Assume each reaction is carried out in an open container. For which reaction will $\Delta H = \Delta E$ ?
→Identify $I, II, III$ in the above diagram :-
$I$ $II$ $III$
→$I$ $II$ $III$
How many moles of hydrazine $(N_2H_4)$ can be oxidized into $N_2$ using $\frac{2}{3}$ mole of bromate ions $(BrO_3^- \to Br^- )$ :-
→