Y13 Bonding MC quiz

Which molecule does not have a permanent dipole?

• NH₃

• PCl₃

• SCl₂

• SiCl₄

Which shows the correct bonding and correct bond polarity in a molecule of oxygen difluoride?

• 
• 
• 
• 

Which statement is not correct?

• CuCl₄²⁻ is square planar

• NH₄⁺ is tetrahedral

• [Co(H₂NCH₂CH₂NH₂)₂]³⁺ is octahedral

• [Fe(H₂O)₆]²⁺ is octahedral

Which statement correctly describes a trend down Group 7 from Cl to I? X represents Cl, Br or I Tick one box only.

• The boiling point of HX increases.

• The bond dissociation energy of H-X increases.

• The standard electrode potential value for X2(aq) + 2 e− → 2X− (aq) becomes more positive.

• The solubility of AgX in ammonia increases.

Which diagram shows the formation of a dative covalent bond? Tick one box only.

• 
• 
• 
• 

Which substance has no delocalised electrons? Tick one box only.

• A. Graphite

• B. Methylbenzene

• C. Poly(propene)

• D. Sodium

Which substance has significant electron delocalisation?

• Graphite

• Iodine

• Sodium chloride

• Tetrachloromethane

Which substance does not have any bond angles of 120° ?

• A. benzene

• B. boron trifluoride

• C. cyclohexane

• D. graphite

Which one of the following has the most covalent character?

• MgF₂

• MgBr₂

• AlF₃

• AlBr₃

Which compound has the highest boiling point? Tick one box only.

• CH₃CH₂CH₂OH

• CH₃CH₂CHO

• CH₃COCH₃

• CH₃COOCH₃