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.
Explore more
Similar questions
The $C - H$ bond length is minimum in the bond formed by
→The correct sequence of reagents for the preparation of $Q$ and $R$ is :
→Electron affinity is the
Two aliphatic aldehydes $\mathrm{P}$ and $\mathrm{Q}$ react in the presence of aqueous $\mathrm{K}_2 \mathrm{CO}_3$ to give compound $\mathrm{R}$, which upon treatment with $\mathrm{HCN}$ provides compound $\mathrm{S}$. On acidification and heating, $\mathrm{S}$ gives the product shown below: $Image$
→$1.$ The compounds $\mathrm{P}$ and $\mathrm{Q}$ respectively are
MCQ $Image$
$2.$ The compound $R$ is
MCQ $Image$
$3.$ The compound $\mathrm{S}$ is
MCQ $Image$
Give the answer question $1,2$ and $3.$
Magnetic moment of $x^{n+}$ is $\sqrt {24} $ $B.M.$ Hence No. of unpaired electron and value of $'n'$ respectively. (Atomic number $= 26$)
→Which of the following compounds is sparingly soluble in ammonia
Which of the following explains the viscous nature of glycerol
be fastest when $R$ is
→Given :
→$(i)\,2Fe(s)\, + \,\frac{3}{2}\,{O_2}\,(g)\, \to \,F{e_2}{O_3}\,(s)\,;$ $\Delta {H^\Theta }\, = \ \,-193.4\,kJ$
$(ii)\,Mg(s)\, + \,\,{O_2}\,(g)\, \to \,MgO\,(s)\,;$ $\Delta {H^\Theta }\, = \, - \,140.2\,kJ$
What is $\Delta {H^\Theta }$ of the reaction ?
$3Mg + Fe_2O_3 \to 3MgO + 2Fe$
.......$kJ$
The possible number of optical isomers in ${[Co{(en)_2}C{l_2}]^ + }$ are
→