If the symbol x represents a central atom, y represents outer atoms, and z represents lone pairs on the central atom, the structure the central x atom is single bonded to two y atoms, which are 180 degrees apart. the x atom has two lone pairs. could be abbreviated as xy2z2. classify each molecule according to its shape. molecular geometries: (a) linear(b) bent 120(c) bent 109(d) trigonal pyramidal(e) t-shaped(f) see saw(g) square planar(h) square pyramidalpossiblities: (1) xy4z2(2) xy5z(3) xy2z(4) xy2z3(5) xy4z(6) xy2z2(7) xy3z2(8) xy3z

(C) bent 109

(2)

Explanation:

The number of bond pairs = 2

Number of lone pairs = 2

The general formula is -

According to VSEPR theory, the atoms will form a geometry in such a way that there is minimum repulsion and maximum stability.  

The central atom has 2 bond pairs and 2 lone pairs. Hybridization is sp³. The geometry is bent shape which has an angle of approximately 105.5°. It original has angle of 109.5° but due to lone pair repulsion, it reduces.

Answer - (C) bent 109

Square pyramidal possibility:- (2)

The central atom has 5 bond pairs and 1 lone pair. Hybridization is sp³d. The geometry is square pyramidal in which the equatorial bonds has an angle of 120° and axial bond has an angle of 90°.

answer; i believe that the correct answer is (a); a large rock being weathered by wind and rain;

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