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Worksheets

Molecular Shape

Total questions: 40

Worksheet time: 1hrs 11mins

Name
Class
Date
1.

Molecular shape for H3O+

a)

tetrahedral

b)

trigonal pyramidal

c)

bent

d)

trigonal planar

2.

Sulfur tetrafluoride is a colorless gas with a distinct sulfur odor. It is highly toxic by inhalation and a strong irritant to skin, eyes and mucous membranes. The SF4 molecule consists of a total of 34 valence electrons. Here 6 will come from sulphur and each of the four fluorine atoms will have 7 electrons. The molecular shape of SF4 is ...

a)

seesaw

b)

trigonal bipyramidal

c)

T-shaped

d)

tetrahedral

3.

Molecular shape of IOF5 is ...

a)

square pyramial

b)

octahedral

c)

square planar

d)

trigonal bipyramidal

4.

Bromine trifluoride (BrF3) is an interhalogen pale yellow liquid with a strong odor. Sulfuric acid dissolves it, although it interacts strongly with water and organic molecules. It’s an ionizing inorganic solvent and a strong fluorinating agent. The molecular shape of BrF3 is ...

a)

seesaw

b)

trigonal planar

c)

linear

d)

T-shaped

5.

XeF4 is a compound that normally occurs as a colourless/white, crystalline solid. This compound is made of up xenon (a noble gas) and fluoride (a naturally occurring mineral). XeF4 can be used to help find and analyse trace metals that contaminate silicone rubber. The molecular shape of XeF4 is ...

a)

octahedral

b)

square pyramidal

c)

square planar

d)

T-shaped

6.

Sulfur Chloride is a light amber to yellowish red, fuming, oily liquid with a strong, nauseating and irritating odor. It is used as an intermediate and chlorinating agent in the manufacture of organic chemicals, sulfur dyes, insecticides, and synthetic rubber. Electronic configuratioon of Sulfur is [Ne] 3s²3p⁴. Chlorine has seven valence electrons with a valency of -1. Chlorine’s electronic configuration is given by [Ne] 3s23p5. The molecular shape of SCl2 is ...

a)

linear

b)

bent

c)

tetrahedral

d)

trigonal pyramidal

7.

Molecular shape for SiCl4

a)

trigonal bipyramidal

b)

bent

c)

trigonal pyramidal

d)

tetrahedral

8.
Choose the correct shape for this molecule:
a)
Trigonal planar
b)
Trigonal pyramidal
c)
Tetrahedral
d)
Linear
9.
Choose the correct shape for this molecule:
a)
Trigonal planar
b)
Trigonal pyramidal
c)
Bent
d)
Linear
10.
Choose the correct shape for this molecule:
a)
Bent
b)
Trigonal pyramidal
c)
Trigonal planar
d)
Linear
11.

Choose the correct shape for this molecule:

a)

Trigonal planar

b)

Linear

c)

Bent

d)

Tetrahedral

12.
Choose the correct shape for this molecule:
a)
linear
b)
Trigonal pyramidal
c)
Bent
d)
Trigonal planar
13.
Choose the correct shape for this molecule:
a)
Tetrahedral
b)
Trigonal pyramidal
c)
Bent
d)
Trigonal planar
14.
 A lone pair is defined as
a)
A pair of bonding electrons
b)
One non-bonding electron
c)
A pair of non-bonding electrons
d)
A pair of electrons on the central atom
15.
According to VSEPR, molecules adjust their shapes to keep which of the following as far away as possible?
a)
Pairs of valence electrons
b)
Inner shell electrons
c)
Mobile Electrons
d)
Electrons closest to the nucleus
16.
Who could this molecule be?
a)
CH4
b)
CO2
c)
PCl5
d)
BF3
17.

Which Lewis Dot Model drawing correctly shows an O2 molecule?

a)
b)
c)
d)
18.

What would be the bond angle between atoms in this molecule?

a)

90

b)

120

c)

180

d)

109.5

19.

The geometry of a molecule with 4 bonded pairs of electrons and 0 lone pairs of electrons, AB4

a)

Tetrahedral

b)

Trigonal Planar

c)

Bent

d)

Trigonal Pyramidal

e)

Linear

20.

What is the molecular shape of the following?

a)

Square Planar

b)

Tetrahedral

c)

Linear

d)

Square Pyramid

21.

What is the molecular shape of the following?

a)

T-Shape

b)

See-Saw

c)

Trigonal Planar

d)

Octahedral

22.

What is the molecular shape of the following?

a)

Hexahedral

b)

Square Pyramid

c)

Octahedral

d)

T-Shape

23.
What is the VSEPR theory used to predict?
a)
Bond Strength
b)
Polarity
c)
Molecular Shape
d)
Electronegativity
24.
Consider the molecule below.  Determine the molecular geometry at each of the 2 labeled carbons.
a)
C1 = tetrahedral, C2 = linear
b)
C1 = trigonal planar, C2 = bent
c)
C1 = bent, C2 = trigonal planar
d)
C1 = trigonal planar, C2 = tetrahedral
25.

Any molecule with only two atoms must be linear. Three-atom molecules such as BeCl2 can also be linear. For linear molecules, the bond angle is

a)

360°360\degree

b)

180°180\degree

c)

120°120\degree

d)

90°90\degree

26.

By looking at the chart, determine the electron geometry (eg) and molecular geometry (mg) of XeF4 (Lewis structure is shown) .

a)

eg = tetrahedral, mg = tetrahedral

b)

eg = linear, mg = linear

c)

eg = octahedral, mg = square planar

d)

eg = trigonal bipyramidal, mg = tetrahedral

27.
What molecular shape is the structure shown here? (NH4+)
a)
linear
b)
trigonal planar
c)
tetrahedral
d)
trigonal pyramidal
28.

Which of these is the shape of CCl4?

a)
b)
c)
d)
e)
29.

Which of these is the shape of NH3?

a)
b)
c)
d)
e)
30.
What is the MOLECULAR geometry of the central oxygen?
a)
Linear
b)
Trigonal Planar
c)
Bent
d)
Tetrahedral
31.

Suatu senyawa yang terbentuk antara satu atom P (nomor atom 15) dan tiga atom Br (nomor atom 35) mempunyai struktur Lewis sebagai berikut.


Bentuk dan kepolaran molekul tersebut adalah ....

a)

planar segitiga dan nonpolar

b)

bentuk T dan polar

c)

tetrahedral dan nonpolar

d)

piramida segitiga dan polar

e)

planar segitiga dan polar

32.

1. Perhatikan konfigurasi elektron 2 buah unsur berikut.

T = [He] 2s2 2p2

Q = [Ne] 3s2 3p5

Bentuk molekul dan jenis kepolaran yang terjadi antara 2 unsur tersebut jika berikatan sesuai aturan oktet adalah …. (HOTS)

a)

trigonal planar, polar

b)

trigonal planar, nonpolar

c)

trigonal piramida, polar

d)

tetrahedral, nonpolar

e)

tetrahedral, polar

33.

Molekul air mempunyai sudut ikhtisar sebesar 104°. Hal ini disebabkan ... .

a)

bentuk molekulnya bengkok

b)

adanya 2 pasangan elektron bebas

c)

bentuk molekulnya tetrahedron

d)

adanya 2 pasang elektron ikatan

e)

atom O dikelilingi 4 pasangan elektron

34.

Unsur X dan Y masing-masing mempunyai nomor atom 16 dan 9. Kedua unsur ini membentuk senyawa dengan rumus XY6. Bentuk molekul senyawa XY6 adalah… .

a)

Linier

b)

Tetrahedral

c)

Oktahedral

d)

Segitiga sama sisi

e)

Trigonal bipiramid

35.

Perhatikan tabel berikut!

Menurut teori tolakan pasangan elektron, data tentang hubungan jumlah pasangan elektron yang tidak benar adalah … .

a)

1 dan 2

b)

2 dan 3

c)

3 dan 4

d)

1 dan 4

e)

4 saja

36.

Struktur molekul unsur flourida dengan unsur M digambarkan sebagai berikut.

Unsur M pada tabel periodik terletak pada golongan ... .

a)

IVA

b)

VA

c)

VIA

d)

VIIA

e)

VIIIA

37.

Perhatiakan gambar produk disamping ini !

Produk tersebut mengandung Iodoform (CHI3). Iodoform merupakan antiseptik yang bersifat non polar sangat efektif untuk kulit dan hmpir semua kuman patogen termasuk fungi dan virus dimatikan oleh iodium. Bentuk molekul Iodoform mengadopsi geometri molekul tetrahedral dengan jumlah pasangan elektron ikatan dan pasangan elektron bebas berturut-turut adalah …. (Nomer atom C=6, Nomer atom H=1, Nomer atom I=53)

a)

2 dan 2

b)

3 dan 2

c)

4 dan 0

d)

4 dan 1

e)

5 dan 0

38.

Perhatikan konfigurasi elektron 2 unsur berikut!

X: Is2 2s2 2p2

Y: Is2 2s2 2p6 3s2 3p5


Bentuk molekul yang terjadi bila unsur X bersenyawa dengan unsur Y sesuai aturan oktet adalah ....

a)

Linier

b)

Bentuk V

c)

trigonal bipiramida

d)

segi empat datar

e)

tetrahedral

39.

Unsur Xe merupakan golongan gas mulia yang sukar berikatan dengan unsur lain. Namun, seiring berkembangnya teknologi, ternyata dapat dibuat senyawa dari unsur Xe dengan unsur paling elektronegatif F yaitu XeF4. Geometri dan tipe hibridisasi pada molekul XeF4 adalah ... (NA Xe:54, F:9)

a)

Segi empat planar, sp3d2

b)

Tetrahedron, sp3d

c)

Segi empat planar, sp2d

d)

Tetrahedron, sp3

e)

Bipiramida trigonal, sp3

40.

Unsur P memiliki elektron valensi 5, sedangkan unsur Br memiliki elektron valensi 7. Bentuk molekul PBr5 ditunjukkan oleh gambar ....

a)
b)
c)
d)
e)