11.Which of the following statements is generally true about electronegativity?
ID: 1001956 • Letter: 1
Question
11.Which of the following statements is generally true about electronegativity?
A.Electronegativity decreases as we move left to right and decreases as we move top to bottom.
B.Electronegativity increases as we move left to right and increases as we move top to bottom.
C.Electronegativity decreases as we move left to right and increases as we move top to bottom.
D.Electronegativity increases as we move left to right and decreases as we move top to bottom.
12.Choose the shortest bond.
A.H–O
B.S–H
C.I–O
D.Cl–N
13.Which one of the following compounds is ionic?
A.FeCl2
B.ClF3
C.SiCl4
D.SF6
E.none of the above
14.Which one of the following molecules or ions is polar?
A.F2
B.PF5
C.BeCl2
D.ClF3
E.XeF2
15.Which of the molecules below is polar?
SeO2
S2
CCl4
CS2
16.Which of the following occurs when an ionic bond is formed?
A.Electrons are transferred from the more electronegative element to the less electronegative element.
B.Electrons are shared unequally.
C.Electrons are transferred from the less electronegative element to the more electronegative element.
D.Electrons are shared equally.
17.Under which of the following conditions is the A—B bond considered to be ionic?
A.when A and B have the same electronegativity
B.when the difference between the electronegativities of the atoms is 2.0
C.when the difference between the electronegativities of the atoms is 1.0
D.when the difference between the electronegativities of the atoms is 1.5
18.What is the formula of the compound formed by potassium and chlorine?
A.KCl
B.K2Cl
C.KCl2
D.KCl3
19.What is the formula of the compound formed between barium and oxygen?
A.Ba2O2
B.BaO
C.Ba2O
D.BaO2
20.What is the correct name for KCl?
A.monopotassium monochloride
B.potassium ion chloride ion
C.potassium chlorine
D.potassium chloride
Please answer all 10 questions correctly.
Explanation / Answer
11. D.Electronegativity increases as we move left to right and decreases as we move top to bottom.
12, A.H–O
13. C.SiCl4
14. D.ClF3
15. SeO2
16. A.Electrons are transferred from the more electronegative element to the less electronegative element.
17. D.when the difference between the electronegativities of the atoms is 1.5
18. A.KCl
19. B.BaO
20. D.potassium chloride
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