Which of the following pairs of atoms will form a polar covalent bond?
A) Ne and Ar
B) H and O
C) H and C
D) C and C
Correct Answer:
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Q79: The formula of magnesium nitride is
A)Mg₃N₂.
B)Mg₂N₃.
C)Mg₂N.
D)MgN.
Q80: Octet means
A)stable electrons.
B)valence electrons.
C)eight.
D)filled shell.
Q81: Which of the following elements has the
Q82: Hydrogen is a diatomic molecule,H₂.The bond holding
Q83: Which substance has polar covalent bonds?
A)SO₂
B)N₂
C)F₂
D)BaO
Q85: The most electronegative atom is
A)Cl.
B)F)
C)Na.
D)I)
Q86: Which of the following elements has the
Q87: When a fluorine atom reacts with a
Q88: In a polar covalent bond,electrons are
A)shared equally.
B)shared
Q89: Which substance has covalent bonds?
A)KF
B)NaF
C)MgI₂
D)CO₂
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