MCQ
Isoelectronic species are
- ✓${K^ + },\,C{l^ - }$
- B$N{a^ + },\,C{l^ - }$
- C$Na,\,Ar$
- D$N{a^ + },\,Ar$
✓
Answer
Correct option: A.
${K^ + },\,C{l^ - }$
a
(a) ${K^ + } = \,1{s^2}\,2{s^2}2{p^6}3{s^2}3{p^6}$
(a) ${K^ + } = \,1{s^2}\,2{s^2}2{p^6}3{s^2}3{p^6}$
$C{l^ - } = \,1{s^2}2{s^2}2{p^6}3{s^2}3{p^6}.$
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
Which of the following order is correct
$C_2H_5 -Br + CH_3ONa \to A \xrightarrow[{(cold)}]{{HI}} B,$ product $B$ is
→The newman projection formula of most stable conformation of $3-$ Hydroxypropanal is
→For a sample of perfect gas when its pressure is changed isothermally from $p_i$ to $p_f,$ the entropy change is given by
→Helium was discovered by
Which of the following compounds exhibits optical isomerism
Given standard electrode potentials
→$F{e^{ + 2 }} + 2{e^ - }\, \to \,Fe\,;\,\,\,\,{E^o} = - 0.440\,V$
$F{e^{ + 3 }} + 3{e^ - }\, \to \,Fe\,;\,\,\,\,{E^o} = - 0.036\,V$The standard electrode potential $({E^o})$ for$F{e^{ + 3 }} + {e^ - } \to \,F{e^{ + 2 }}$ is .............. $\mathrm{V}$
For the reaction at $300\,K$
→$A(g) + B(g) \to C(g)$ $\Delta U=\,-\,3\,Kcal$
$\Delta S=\,-\,10\,cal/K$
value of $\Delta G$ will be ......$cal$
The oxidation number of nickel in ${K_4}[Ni{(CN)_4}]$ is
→Given below are two statements:
→(Image)
$IUPAC$ name of Compound $A$ is $4-$ chloro-$1$, $3$-dinitrobenzene:
(Image)
$IUPAC$ name of Compound $B$ is
$4$-ethyl-$2$-methylaniline.
In the light of the above statements, choose the most appropriate answer from the options given below: