AFNS — AFNS Chemistry
Chemical Bonding
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#9 NaCl has bond type:
A) Ionic
B) Covalent
C) Metallic
D) Hydrogen only
Answer: A
#10 O2 has bond type:
A) Covalent
B) Ionic
C) Metallic
D) Van der Waals only
Answer: A
#11 Metallic bond exists in:
A) Metals
B) Noble gases
C) Salts only
D) Water only
Answer: A
#12 Electronegativity difference >1.7 often gives:
A) Ionic character
B) No bond
C) Only metallic
D) Only hydrogen
Answer: A
#13 Lewis structure shows:
A) Valence electrons
B) Nucleons
C) Neutrons only
D) Mass number
Answer: A
#14 Octet rule:
A) Atoms tend to 8 valence electrons
B) Atoms tend 2 protons
C) No electrons
D) Only hydrogen follows
Answer: A
#15 Coordinate bond is:
A) Both electrons from one atom
B) One electron each always
C) No electrons
D) Proton transfer
Answer: A
#16 NH4+ has:
A) Coordinate covalent bond in formation
B) Only ionic
C) Only metallic
D) No nitrogen
Answer: A
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