Suitable condition for melting of ice :
high temp. and high pressure
high temp. and low pressure
low temp. and low pressure
low temp. high pressure
Element having maximum affinity is :
F2
Cl2
Br2
I2
B.
Cl2
Among halogens , the order of elctron affinity is -
Cl > F > Br > I
Unexpectedly , florine has less electron affinity than chlorine .It is due to greater elctron density on F (lesser size) due to which it fends to repel the incoming electron .