The total possible co-ordination isomers for the following respectively are
$[Co {(en)}_{3}] [Cr {(C_{2} O_{4})}_{3}]$
$[Cu {({NH}_{3})}_{4}] [{CuCl}_{4}]$
$[Ni {(en)}_{3}] [Co {({NO}_{2})}_{6}]$

see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.

An Intiative by Sri Chaitanya

$2, 2, 4$

$2, 2, 2$

$4, 2, 4$

$4, 4, 4$

answer is D.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

$[Co {(en)}_{3}] [Cr {(C_{2} O_{4})}_{3}]$ , $[Co (C_{2} O_{4}) {(en)}_{2}]$ , $[Cr {(C_{2} O_{4})}_{3} {(en)}_{2}] [Co {(C_{2} O_{4})}_{2} (en)]$ , $[Cr {(en)}_{3}] [Co {(C_{2} O_{4})}_{3}]$ Total coordination isomers $= 4$

$[Cu {({NH}_{3})}_{4}] [{CuCl}_{4}], [CuCl {({NH}_{3})}_{3}] [{CuCl}_{3} ({NH}_{3})]$ Total coordination isomers $= 2$

$[Ni {(en)}_{3}] [Co {({NO}_{2})}_{6}], [Ni {({NO}_{2})}_{2} {(en)}_{2}] [Co {({NO}_{2})}_{4} (en)], [Co {({NO}_{2})}_{2} {(en)}_{2}] [Ni {({NO}_{2})}_{4} (en)]$ $[Co {(en)}_{3}] [Ni {({NO}_{2})}_{6}]$ Total No. of coordination isomers $= 4$