Four complexes are given : (P) [CoCl(NH_(3))_(5)]^(2+)""(Q) [Co(NH_(3))_(5)(H_(2)O)]^(3+) (R ) [Co(NH_(3))_(6)]^(3+)""(S) [Co(CN)_(6)]^(3-) All of them exhibit at least one of the following 4 colours viz, violet, red, yellow orange, pale yellow. One of them absorbs light in the U.V. region. Choose the correct statement(s).

Four complexes are given : (P) [CoCl(NH_(3))_(5)]^(2+)""(Q) [Co(NH_(3

1.	Four complexes are given : (P) [CoCl(NH_(3))_(5)]^(2+)""(Q) [Co(NH_(3))_(5)(H_(2)O)]^(3+) (R ) [Co(NH_(3))_(6)]^(3+)""(S) [Co(CN)_(6)]^(3-) All of them exhibit at least one of the following 4 colours viz, violet, red, yellow orange, pale yellow. One of them absorbs light in the U.V. region. Choose the correct statement(s).
Answer» Order of wavelength of light absorbed : `PgtQgtRgtS` S must be violet in COLOUR R must have absorbed wavelength of blue colour light Q must be pale YELLOW in colour Solution :Order of `Delta_(0) : (S) gt (R ) gt (Q) gt (P), Delta_(0) prop(1)/(lambda_(ABS))`