Test: Pericyclic Level - 3 - Chemistry MCQ

The most appropriate starting materials for one step: 

The reaction between X and Y to given Z proceeds via:

In the reaction sequence, the major products X and Y, respectively are:

The major product formed in the following reaction is:

The major product of the following reaction is:

The major product of the following reaction is:

The major product formed in the following reaction is:

The major product X and Y formed in the following reaction sequence are:

The major product formed in the following reaction is:

The major product formed in the following reaction is:

The major product formed in the following reaction is:

In the following concerted reaction, the product is formed by a: 

The number of nodes present in the highest occupied molecular orbital of 1, 3, 5-hexatiriene in its ground state in thermal conditions is:

Select the correct classification in the following reaction from options I to IV gives below:

(I) Conrotatory electrocyclic reaction
(II) Disrotatory electrocyclic reaction
(III) Valence iso merization
(IV) [π⁴S + π²a] Cycloaddition reaction

The thermal ring opening reactions of cyclo butane are:

Hydrogen bonding is maximum in:

The major product of the following reaction is:

Give the product expected from heating following compound:

For the following concerted reaction specify the condition and mode of rotation:

Predict the stereochemistry of the product X:
 

Which of the following electro cyclic reactions show correct equilibrium state:

Predict the stereochemistry of the product:

Which of the following compounds on distillation not loses its optical activity:

The major product B is: 

Which of the following reaction gives same product in photochemical as well as thermalb conditions:

The major product B is:

The compound R on treatment with heat or light gives K and C, respectively is: