Question

The electron geometries around G and G are a) best, trigonal planar b) tetrahedral, trigonal plaser c) tetrahedral, tetrahedral d) bent, trigonal pyramidal e) angular, octahedral respectively. Identify the hybridization of the two carbon atoms labeled a) sp, sp and b) sp. sp c) sp, sp d) sp. sp cs Note This ia not a Lewis strucure 38 37 The molecular geometry and the boad angle of H,O are a) bent and 180, b) etrabedral and 109. s c) beet and less than 109.5 4 tetrabedral and greater than 109.5 e) bent and 120 Use bond energies to calculate the ΔΗ-for the following reaction: 40 39

Answer 1

In the given structure, the C₁? carbon atom bonded to two other carbon atoms and two hydrogen atoms. So, this carbon atom bonded to four atoms.

According to VSEPR theory, AX₄? type molecule ( A is the central atom and X is the bonded atoms) has tetrahydral electron geometry around the central atom. Since C₁? is AX?₄? type, the electron geometry around C₁ carbon is tetrahydral.

The C₂? carbon atom bonded to two other carbon atoms and two hydrogen atoms.

According to VSEPR theory, AX₄? type molecule ( A is the central atom and X is the bonded atoms) has tetrahydral electron geometry around the central atom. Since C₂? is AX?₄? type, the electron geometry around C₁ carbon is tetrahydral.

Therefore, the electron geometry around C₁ and C₂? are tetrahydral and tetrahydral respectively and the correct option is c.