Chemistry 9701 · AS & A Level · Chemical bonding

Chemical bonding — practice question

$\text{HCN}$ has been found in interstellar gas. The molecules below have also been found in interstellar gas. Which molecule has the same overall number of valence shell (outer shell) electrons as $\text{HCN}$?

  • A$\text{HNO}$
  • B$\text{NH}_3$
  • C$\text{NO}$
  • D$\text{PN}$

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