Isomerism Test ...

Bond formation is:

C1 - C2 bond of this molecules is formed by:

In which of the following molecules resonance takes place through out the entire system

In which of the following molecules – NO₂ group is not coplanar with phenyl ring ?

In which of the following molecels both phenyl rings are not coplanar ?

In which of the following molecules, all atoms are not coplanar ?

In which of the following, functional group isomerism is not possible?

Among, these, which are canonical structures ?

Rank the following compounds in order of decreasing acidity of the indicated hydrogen :

(i)

(ii)
(iii)

Among these canonical structures, the correct order of stability is

Amongt these canonical structures which one is least stable ?

CH₂ = CH – CH = CH – CH₃ is more stable than CH₃ – CH = C = CH – CH₃ because

For phenol which ofthe following resonating structure is the most stable ?

Among these three canonical structures (through more are possible) what would be their relative contribution in the hybrid

The most stable resonating structure of following compound is

Among these canonical structures of pyridiine, the correct order of stability is

The least stable canonical structure among these is

Rank the following compounds in order of decreasing acidity.

In phenol, π-electron-density is maximum on

Which of the following compounds has maximum electron density in ring ?

In which of the following molecules π-electron density in ring is minimum?

In which of the following molecules π-electron density in ring is maximum?

In this molecules, π-electron-density is more on

In which of the following pairs, first species is more stable than second ?

Among these compounds, the correct order of resonance energy is

Rank the following free radicals in order of decreasing stability

Among these compounds, which one has maximum resonance energy ?

There are three canonical structures of napthalene. Examine them and find correct statement among the following:

Which of the following has longest C – O bond: