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HYDROGEN BOND

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

What is the basis of hydrogen bond?

a)

Attraction forces between hydrogen atom bonded with another hydrogen atom

b)

Attraction forces between hydrogen atom bonded with a high electronegativity atom (F, O, N)

c)

Attraction forces between hydrogen atom bonded with a high electronegativity atom (F, O, N) with atom (F, O, N) of another molecule

d)

Attraction forces between hydrogen atom with another hydrogen atom of another molecule

2.

Can ammonia, NH3 form hydrogen bonds?

a)

Yes

b)

No

3.

When hair is dry, protein molecules in the hair structure form hydrogen bonds with...

a)

other protein molecules in the same hair structure

b)

water molecules, H2O

c)

other protein molecules from another hair structure

d)

water molecules, H2O which also forms hydrogen bonds with protein molecules from another hair structure

4.

When hair is wet, protein molecules in the hair structure form hydrogen bonds with...

a)

other protein molecules in the same hair structure

b)

water molecules, H2O

c)

other protein molecules from another hair structure

d)

water molecules, H2O which also forms hydrogen bonds with protein molecules from another hair structure

5.

How do you overcome a difficulty in turning the pages of a book when the pages stick together?

a)

Ripping the pages until they are separated

b)

Shake the book until the pages separate

c)

Lick your finger before turning the pages

d)

Blow the pages as hard as you can

6.

How can hydrogen bonds form between cellulose in paper and water molecule, H2O on the finger?

a)

By pouring a bucket of water on the paper

b)

Water molecules, H2O on the wet finger will form hydrogen bonds with cellulose in paper

7.

Can chlorine, Cl2 form hydrogen bonds?

a)

Yes

b)

No

8.

Why can compounds that can form hydrogen bonds have higher boiling points than compounds that cannot form hydrogen bonds?

a)

Compounds that can form hydrogen bonds need to overcome weak Van der Waals attraction forces

b)

Compounds that can form hydrogen bonds need to overcome strong hydrogen bonds

c)

Compounds that can form hydrogen bonds need to overcome weak Van der Waals attraction forces and strong hydrogen bonds

9.
Which of the following has the highest boiling point?
a)
H2
b)
NH3
c)
N2
d)
O2
10.
What explains the very high melting and boiling point of water
a)
Strong dipole-dipole bonds between water molecules
b)
Strong hydrogen bonds between water molecules
c)
Dispersion forces which are present in all molecules
d)
Asymmetrical shape of the polar bonds.