If the symbol x represents a central atom, y represents outer atoms, and z represents lone pairs on the central atom, the structure y-: x: -y could be abbreviated as xy2z2.
classify these structures according to their shape.
xy2z, xy2z2,xy2z3,xy3z, xy3z2,xy4z, xy4z2,xy5z the categories are linear, bent(~120), bent(~109), trigonal pyramidal, t-shaped, see-saw, square planar, square pyramidal

1) Bent(120)

2) Bent (109)

3) Linear

4)Trigonal Pyramidal

5)t-shaped

6)see-saw

7)Square planar

8)Square pyramidal

Explanation:

1) XY₂Z:

Central atom = X

# Bonds around X = 2 X-Y bonds

# Lone pairs = 1

Shape = Bent (~120)

2) XY₂Z₂:

Central atom = X

# Bonds around X = 2 X-Y bonds

# Lone pairs = 2

Shape = Bent (~109)

3) XY₂Z₃:

Central atom = X

# Bonds around X = 2 X-Y bonds

# Lone pairs =3

Shape = Linear

4) XY₃Z:

Central atom = X

# Bonds around X = 3 X-Y bonds

# Lone pairs = 1

Shape = Trigonal Pyramidal

5) XY₃Z₂:

Central atom = X

# Bonds around X = 3 X-Y bonds

# Lone pairs = 2

Shape = t-shaped

6) XY₄Z:

Central atom = X

# Bonds around X = 2 X-Y bonds

# Lone pairs = 1

Shape = see-saw

7) XY₄Z₂:

Central atom = X

# Bonds around X = 4 X-Y bonds

# Lone pairs = 2

Shape = Square planar

8) XY₅Z:

Central atom = X

# Bonds around X = 5 X-Y bonds

# Lone pairs = 1

Shape = Square pyramidal

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be