Question
Which molecules have no overall dipole moment?
1 boron trifluoride
2 methane
3 phosphorus pentafluoride
▶️Answer/Explanation
Ans:A
Question:
A stable ion \(N_{5}^{~+}\) has been produced by research chemists. Which structure is most likely to show the electron arrangement of this ion?
▶️Answer/Explanation
Ans:B
Question:
Which molecule does not have any 90° or 180° bond angles?
A \(C_{2}H_{6}\) B \(CO_{2}\) C \(PF_{5}\) D \(SF_{6}\)
▶️Answer/Explanation
A
Question
The characteristic smell of garlic is due to alliin.
What are the approximate bond angles x, y and z in a molecule of alliin?
▶️Answer/Explanation
Ans:C