Exam 4: Molecular Shape and Structure

For peroxyacetylnitrate,CH₃C(O)O-ONO₂,what hybrid orbitals are used by the oxygen atom in bold?

Which of the following has bond angles of 120 ^$\circ$ ?

The NCO bond angle in formamide,H₂NCHO,is __________.

All the following are polar except

How many $\sigma$ - and $\pi$ -bonds,respectively,are there in peroxyacetylnitrate,CH₃C(O)O-ONO₂?

When two atoms are brought together along the x-axis,what is the number of $\sigma$ bonds that can be formed by overlap of p-orbitals on each atom?

In the NO molecule,which atom makes the larger contribution to the lowest energy molecular orbital?

What is the shape of ICl₄^-?

For A₂,the LCAO-MO, $\varPsi$ = c_A $\varPsi$ _A + c_B $\varPsi$ _B,has c_A = c_B.

Identify the hybrid orbitals used by the underlined atom in acetone,CH₃COCH₃.

The electron arrangement and shape in IF₄⁺,respectively,are

Which of the following has bond angles of 180 ^$\circ$ ?

All the following have a linear shape except

Which of the following has bond angles of 90 ^$\circ$ ,120 ^$\circ$ ,and 180 ^$\circ$ ?

Draw the Lewis structure of the cyanamide ion,NCNH^-,and give the number of lone pairs of electrons and the number of $\sigma$ - and $\pi$ -bonds.