MCQ
The configuration $1{s^2},\,2{s^2}2{p^5},\,3{s^1}$ shows
- AExcited state of $O_2^ - $
- ✓Excited state of neon
- CExcited state of fluorine
- DGround state of fluorine atom
The excited neon configuration is $1{s^2}2{s^2}2{p^5}3{s^1}$.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$(a)$ $R_2SiO$ is repeating unit of linear silicones
$(b)$ $RSiCl_3$ on hydrolysis followed by dehydration gives linear silicones
$(c)$ Silicones can be used as heat insulator
$(d)$ Silica is soluble in $HF$
The correct statement$(s)$ is/are
$Gas$ $(A)$ bums with a blue flame and is oxidised to $gas$ $(B)$,
$Gas\left( A \right) + C{l_2} \to \left( D \right)\xrightarrow{{N{H_3},\Delta }}\left( E \right)$.
$A,B, C$ and $E$ are