State the condition for the resonance to occur.

The most important condition for resonanace to occur is that the invovled atoms in resonating structure must be coplanar or nearly coplanar for maximum delocalisation. If this condition does not fulfil, involved orbitals cannot be parallel to each other and as consequence delocalisation cannot occur. Bulky groups present on adjacent atoms inhibit the planarity of atoms involved in resonance. this pehnomenon is known as steric inhibition of resonance. Steric inhibition of resonance has profound effect on Q. Which of the following is most acidic:

The most important condition for resonanace to occur is that the invovled atoms in resonating structure must be coplanar or nearly coplanar for maximum delocalisation. If this condition does not fulfil, involved orbitals cannot be parallel to each other and as consequence delocalisation cannot occur. Bulky groups present on adjacent atoms inhibit the planarity of atoms involved in resonance. this pehnomenon is known as steric inhibition of resonance. Steric inhibition of resonance has profound effect on Q. Arrange the following in the decreasing order of basicity: .

A given LCR series circuit satisfes the condition for resonance with a given AC source. If the angular frequency of the AC source is increased by 100% then in order to establish resonance, and without changing the value of inductance, capacitance must be

A given LCR series circuit satisfes the condition for resonance with a given AC source. If the angular frequency of the AC source is increased by 100% then in order to establish resonance, and without changing the value of inductance, capacitance must be

State two conditions for the formation of an echo.

(i) State the principle on which the working of an optical fiber is based. (ii) What are the necessary conditions for this phenomenon to occur ?

State the essential condition for the addition of vectors.

State the condition for maximum current to be drawn from the cell.

State the necessary conditions for the constructive and the destructive interference.

What are .beats. ? Explain their production. State the necessary conditions for the production of beats.