what is the molecular shape of hcn?\n○ bent\n○ linear\n○ angular\n○ trigonal pyramidal

what is the molecular shape of hcn?\n○ bent\n○ linear\n○ angular\n○ trigonal pyramidal

what is the molecular shape of hcn?\n○ bent\n○ linear\n○ angular\n○ trigonal pyramidal

Answer

Brief Explanations:

  1. First, draw the Lewis - structure of HCN. Hydrogen (H) has 1 valence electron, carbon (C) has 4 valence electrons, and nitrogen (N) has 5 valence electrons. The total number of valence electrons is (1 + 4+5 = 10).
  2. In the Lewis - structure of HCN, carbon is the central atom. Carbon forms a single bond with hydrogen ((C - H)) and a triple bond with nitrogen ((C\equiv N)).
  3. According to the VSEPR (Valence - Shell Electron - Pair Repulsion) theory, the electron - pair geometry around the central carbon atom is linear because there are two regions of electron density (the (C - H) bond and the (C\equiv N) bond) and no lone pairs on the central carbon atom. So, the molecular shape is also linear.

Answer:

linear