Probelm set 1

9
1- What do you call these orbitals 2- What is the type of bonding in each of the following molecules a) NaCl b) KF c) F-F d) H-F e) CF 4 f) O=O 3- Label with an arrow the direction of electrons in the following molecules a) H-F b) H-O-H c) O=C=O d) CF 4 e) NH 3 f) NF 3 4- Label each of the following molecules as polar or non- polar a) CO 2 b) H-F c) H 2 O d) CCl 4

Transcript of Probelm set 1

Page 1: Probelm set 1

1- What do you call these orbitals

2- What is the type of bonding in each of the following moleculesa) NaClb) KFc) F-Fd) H-Fe) CF4

f) O=O

3- Label with an arrow the direction of electrons in the following moleculesa) H-Fb) H-O-Hc) O=C=Od) CF4

e) NH3

f) NF3

4- Label each of the following molecules as polar or non-polara) CO2

b) H-Fc) H2Od) CCl4

e) CHCl3

f) CH2Cl2

g) CHI3

h) NH3

i) CO

5) What is the formal charge on each element of the following molecules

a)

::

....HH OO

OO

OO

NN

::

::....

....

::

....HH OO

OO

OO

NN

::

::....

....

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b) CF4

c)

6) Draw the line structural formula of

a)

b) CH3CH2CH2CH3

c) CH3CH2CH2CH2OH

d) ClCH2CH2CH2CH2OH

7) Which one of the following pair of molecules are isomersa) CH4 and CF4

b) NH4OCN and

8) Draw the resonance structures of Benzene

9) Draw the resonance structures of O3

....

BBFF

FF

FF

FF

....

............:: ::

:: ::

:: ::

....

....

BBFF

FF

FF

FF

....

............:: ::

:: ::

:: ::

....

BBFF

FF

FF

FF

BBFF

FF

FF

FF

....

....

....

....................:: ::

:: ::

:: ::

....

HH

OO

CC CC CC

HH HH HH

HH

HHHH :: ::

HH

HH

OO

CCCC CC CCCC

HH HH HHHH HH HH

HH

HHHH HHHH :: ::

HH

HH22NCNHNCNH22

OO

HH22NCNHNCNH22

OO

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10) Draw the correct shape of

a) CCl4

b) H2Oc) CH4

11) How much is the angle between H -C - H in CH4

12) How much is the angle between H-O and H in Water

13) Is the angle between H-C-H in CH2Cl2 greater or smaller than 109.5

14) Is formaldehyde planar or tetrahedral molecule

15) What do we call the shape geometry of CO2

16) Draw the direction of the dipole moment in each bond. CH2Cl2

17) Name the three types of Aliphatic hydrocarbons18) What do we call the orbitals around an atom

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19) Electrons in a covalent bond are located in what type of orbitals?

20) What is the general formula of an open chain hydrocarbon

21) Which has the highest boiling point Methane or propane

22) Where are the valence electrons located in an isolated carbon atom

23) What is the hyberdisation of Carbon in Ethane

24) What is the name of the covalent single bond in hydrocarbons

25) How many sp3 orbitals are there in hyberdized carbon

26) Draw the different isomers of C4H10

27) Draw the different isomers of C5H12

28) Name the following

29) Name the following

30) Name the following

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31) Name the following

What is the molecular formula of this compound? What type of hydrocarbon is it? What is the general molecular formula of the following family of compounds

32) Which has a higher boiling point

32) Balance the following combustion reactiona) C6H6 + O2 ?

b) C2H2 + O2 ?

33) Name the functional group in each of the following a) CH2CH2Clb) CHF3

c) CH3OH

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34) Name the following CH3CH2CH2CH2Cl

35) Name the following ClCH2CH2CH2CH2Cl

36) Name the following BrCH2CH2CH2CH2CH2OH

37) Name the following

38) Draw the Lewis line structure of the following compoundsa) Methanol

b) Ethanol

c) Propanol

d) 2- Bromo-propane

e) 2- Iodo-Octane

f) 2,2-Diethyl-3-Bromo-3-Chloro-Octane

g) 1,2,3,4,5,6-hexachloro-cyclohexane

CHCH33CCHCCH22CHCH22CHCH33

OHOH

CHCH33

CHCH33CCHCCH22CHCH22CHCH33

OHOH

CHCH33

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h) tetra-cyclohexyl-methane

39) What type of bonding exists between alcohol molecules

40) Draw the product of the reaction between the following acid and Alcohola) Methanol + HCl

b) Propanol + HI

c) Tert-Butanol + HCl

d) 4-chloro-cyclohexanol + HI