MCQ
The elements having the electronic configuration $[Kr]4d^{10}\,f^{14}\,5s^2\,p^6\,d^2\,6s^2$ belongs to
  • A
    $s-$ block
  • B
    $p-$ block
  • $d-$ block
  • D
    $f-$ block

Answer

Correct option: C.
$d-$ block
c

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

A precipitate of $AgCl$ is formed when equal volumes of the following are mixed. $[{K_{sp}}$ for $AgCl = {10^{ - 10}}]$
Determine enthalpy of formation for $H_2O_2(\ell ),$  using listed enthalpies of reaction

${N_2}{H_4}(l)\,+\,2{H_2}{O_2}(l)\,\, \to \,{N_2}(g)\,\, + \,4{H_2}O(l);\,\,{\Delta _r}H_1^o\, = \, - 818\,\,kJ/mol$

${N_2}{H_4}(l)\,\, + {O_2}(g)\,\, \to \,{N_2}(g)\,\, + \,2{H_2}O(l);\,\,{\Delta _r}H_2^o\, = \, - 622\,\,kJ/mol$

${H_2}(g)\,\, + 1/2{O_2}(g)\,\, \to \,{H_2}O(l);\,\,{\Delta _r}H_3^o\, = \, - 285\,\,kJ/mol$

......$kJ/mol$

Find product $(C)$ and $(E)$

$n-$propyl bromide $\xrightarrow{{Na}}(A)\xrightarrow[{A{l_2}{O_3}/773\,K}]{{Cr{O_3}}}(B)\xrightarrow[{500\,K}]{{C{l_2}/UV}}(C)$

$n-$propyl bromide $\xrightarrow{{Na}}(A)\xrightarrow[{A{l_2}{O_3}/773\,K}]{{Cr{O_3}}}(B)$ $\xrightarrow[{}]{{C{H_3} - Cl/AlC{L_3}}}(D)\xrightarrow{{C{l_2}/hv}}(E)$

Which one of the following is a planar molecule
$24\, g\, Mg$ metal reacts with water, then how many moles of $H_2$ will be liberated  ............. $\mathrm{mol}$
Which of the following salts will give highest $pH$ in water?
Incorrect order of bond angle is
The chief source of aromatic compounds is:
The equilibrium constant $(K_c) $ for the reaction ${\rm{HA}} + {\rm{B}}$ $\rightleftharpoons$ ${\rm{B}}{{\rm{H}}^+} + {{\rm{A}}^-}$ is $100$. If the rate constant for the forward reaction is $10^5$, then rate constant for the backward reaction is
Choose the correct order of stability of carbocation using the concept of hyperconjugation.
$\begin{matrix}{\ \ \ \ \ \ \ \ \ \ \ \ \text{CH}_3\\ \ \ \ \ \ \ \ \ \ \ \ \ \ |\\\text{CH}_3-\text{C}^\oplus\\ \ \ \ \ \ \ \ \ \ \ \ \ \ |\\\ \ \ \ \ \ \ \ \ \ \ \ \text{CH}_3} & { \ \ \ \ \ \ \ \ \ \ \ \ \text{CH}_3\\ \ \ \ \ \ \ \ \ \ \ \ \ \ |\\\text{CH}_3-\text{C}^\oplus\\ \ \ \ \ \ \ \ \ \ \ \ \ \ |\\ \ \ \ \ \ \ \ \ \ \ \ \ \text{H} } & {\text{CH}_3\stackrel{{\oplus} }{\hbox{CH}_2}} & \stackrel{{\oplus} }{\hbox{CH}_3} \\ \ \ \ \ \ \ \ \ \text{I} & \ \ \ \ \ \ \ \text{II} & \ \ \text{III} & \text{IV} \end{matrix}$