Representation of organic compounds

Q.

The minimum internuclear distance is present in:

1. O₂

2. O₂^2-

3. O₂^-

4. O₂⁺

Q. Convert the following condensed structures into Bond-line structure.
$C{H}_{3}CONHC{H}_{2}OC{H}_3$

1. 
2. 
3. 
4. 

Q.

Which hybrid orbitals are used by carbon atoms in the following molecules?

CH₃–CH₃; (b) CH₃–CH=CH₂; (c) CH₃-CH₂-OH; (d) CH₃-CHO (e) CH₃COOH

Q. Which one of the following represent 3-D Structure ?

1. 
2. 
3. 
4. All of the above.