Bond polarity

Last updated: 04/02/2020

AQA A-Level Chemistry Bonding Bond polarity

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Question 1 of 25

1. Question
What is the definition of electronegativity?
- An atoms ability to attract the electron pair within a covalent bond
- The strength of a covalent bond
- An atoms ability to repel the electron pair within a covalent bond
- An atoms ability to attract the electron pair within an ionic bond
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Question 2 of 25

2. Question
What is the definition of a polar bond?
- A difference in electronegativity of two atoms in the bond causing a permanent dipole
- A difference in electronegativity of two atoms in the bond causing a hydrogen bond
- A difference in the masses of two atoms in the bond
- A difference in the charges of two atoms in the bond
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Question 3 of 25

3. Question
What is the definition of a dipole?
- A difference in charge of two atoms caused by a shift in electron density
- A difference in the charge of two atoms cause by a shift in electronegativity
- An area of high electron density
- An area of low electron density
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Question 4 of 25

4. Question
What happens to the dipoles in a symmetrical compound?
- The dipoles are cancelled out
- Nothing happens to the dipoles
- The electron density is increased
- They are all broken
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Question 5 of 25

5. Question
Which of the following is a feature of a polar molecule?
- Contains an overall dipole
- There is no overall dipole
- There are areas of low electron clouds
- There are areas of high electron clouds
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Question 6 of 25

6. Question
Which of the following is a feature of a non-polar molecule?
- There is no overall dipole
- Contains an overall dipole
- There are areas of low electron clouds
- There are areas of high electron clouds
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Question 7 of 25

7. Question
Why is chlorine a non-polar molecule?
- The electronegativity of both chlorine atoms are the same
- The electronegativity of both chlorine atoms are different
- There is opposite charges between both chlorine atoms
- The molecule contains no electrons
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Question 8 of 25

8. Question
What scale is used to measure the electronegativity of an element?
- Pauling scale
- Markownikoff scale
- Fehling scale
- Bronsted scale
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Question 9 of 25

9. Question
When measuring electronegativity which type of bonding is measured?
- Covalent
- Hydrogen
- Ionic
- Metallic
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Question 10 of 25

10. Question
Describe the trend in electronegativity across a period.
- Electronegativity increases across a period
- Electronegativity decreases across a period
- Electronegativity stays the same across a period
- Electronegativity across periods will depend on the group number
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Question 11 of 25

11. Question
Describe the trend in electronegativity down a group.
- Electronegativity decreases down a group
- Electronegativity increases down a group
- Electronegativity stays the same down a group
- Electronegativity down groups will depend on the group number
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Question 12 of 25

12. Question
Describe the relationship between the difference in electronegativity between two atoms and the polarity of the bond.
- The larger the difference in electronegativity the more polar the bond is
- The smaller the difference in electronegativity the more polar the bond is
- The larger the difference in electronegativity the less polar the bond is
- The difference in electronegativity does not affect the polarity of a bond
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Question 13 of 25

13. Question
Within group 17, which element is the most electronegative?
- Fluorine
- Bromine
- Chlorine
- Iodine
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Question 14 of 25

14. Question
Which element is the most electronegative?
- Fluorine
- Neon
- Lithium
- Iodine
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Question 15 of 25

15. Question
Which element is the most electronegative?
- Chlorine
- Magnesium
- Aluminium
- Sodium
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Question 16 of 25

16. Question
Which element is the most electronegative?
- Iodine
- Rubidium
- Stronium
- Tin
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Question 17 of 25

17. Question
Which element is the least electronegative?
- Lithium
- Oxygen
- Beryllium
- Fluorine
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Question 18 of 25

18. Question
Which element is the least electronegative?
- Aluminium
- Silicon
- Phosphorus
- Argon
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Question 19 of 25

19. Question
Which element is the most electronegative?
- Lithium
- Sodium
- Francium
- Potassium
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Question 20 of 25

20. Question
Which element is the most electronegative?
- Boron
- Gallium
- Indium
- Aluminium
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Question 21 of 25

21. Question
Which element is the least electronegative?
- Stronium
- Beryllium
- Magnesium
- Calcium
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Question 22 of 25

22. Question
Which element is the least electronegative?
- Lead
- Carbon
- Tin
- Silicon
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Question 23 of 25

23. Question
Describe the polarity of hydrochloric acid.
- Polar
- Non-polar
- Non-polar in water
- Polar in bases
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Question 24 of 25

24. Question
Describe the polarity of carbon dioxide.
- Polar
- Non-polar
- Semi-polar
- Polar when molten
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Question 25 of 25

25. Question
Describe the polarity of water.
- Polar
- Non-polar
- Semi-polar
- Polar when gaseous
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