IIT-JAM-CY SERIES Chemistry
Organometallic Compounds
5 previous year questions.
Volume: 5 Ques
Yield: Medium
High-Yield Trend
1
2026 4
2021 Chapter Questions 5 MCQs
01
PYQ 2021
medium
chemistry ID: iit-jam-
The CORRECT order of p for the compounds I to IV in water at 298 K is
1
I>II>III>IV
2
IV>III>II>I
3
IV>II>III>I
4
I>III>II>IV
02
PYQ 2021
medium
chemistry ID: iit-jam-
The CORRECT statement(s) about the species is (are)
1
CpMo(CO) and CpW(CO) are isoelectronic (where Cp is cyclopentadienyl)
2
CH and NH are isolobal and isoelectronic
3
BH and CH are isolobal and isoelectronic
4
CH and Mn(CO) are isolobal
03
PYQ 2021
medium
chemistry ID: iit-jam-
The complex that does NOT obey the 18-electron rule is (Given: Atomic numbers of Ti, Mn, Ta and Ir are 22, 25, 73 and 77, respectively)
1
[( -C H )Ti(CO) ]
2
[Mn(SnPh ) (CO) ]
3
[( -C H )Ir(CH )(PMe )]
4
[TaCl (PEt ) (CHCMe )]
04
PYQ 2021
medium
chemistry ID: iit-jam-
The decreasing order of C=C bond length in the following complexes is
1
II>I>III>IV
2
IV>II>I>III
3
II>IV>III>I
4
IV>I>II>III
05
PYQ 2026
medium
chemistry ID: iit-jam-
Compare the M–C bond length in the following complexes:
, , .
, , .