MCQ
In following two plots, ${\psi ^2}$ is plotted against the distance $'r'$ from nucleus

select the correct statement

  • $'a'$ is for $1s$ and $'b'$ for $2s$
  • B
    $'a'$ is for $2s$ and $'b'$ for $1s$
  • C
    $'a'$ is for $2s$ and $'b'$ for $2P$
  • D
    $'a'$ is for $2p$ and $'b'$ for $2s$

Answer

Correct option: A.
$'a'$ is for $1s$ and $'b'$ for $2s$
a
$'A'$ is for $1s$ because $1s$ has no node; $'B'$ is for $2s$ because this orbital has single node

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