Draw the cis- and trans- forms of 1, 3-dimethylcyclobutane. Which one of these

(i) will be polar in nature?

(ii) has higher melting point? Explain your answer giving reason

Write the values of four quantum numbers for the electrons present in the following orbitals.

(i) 2p (ii ) 3d (iii) 4f

Give reason for the following:

(i) Ethanoic acid is more acidic than ethanol.

(ii) Aniline is less basic than ammonia.

Draw the resonance structures of cyanate ion. Out of them which one is less important as a resonance structure and why?

What is photoelectric effect? How did Einstein explain it?

Give the molecular structure of the following compounds:

(i) 2-Phenyl-1-octene

(ii) 2-Phenylbromoethane

(iii) 4-Bromotoluene

(iv) 1-Bromo-2-chlorobenzene

(v) Propylbenzene

(ii)What is a well behaved function? Illustrate using a suitable diagram.