List of top Questions asked in IIT JAM CY- 2021

The complex(es) that show(s) Jahn–Teller distortion is (are)

The CORRECT statement(s) about sodium nitroprusside is (are)

The CORRECT statement(s) about the species is (are)

The CORRECT statement regarding the molecules BF$_3$ and CH$_4$ is

The volume correction factor for a non-ideal gas in terms of critical pressure ($p_c$), critical molar volume ($V_c$), critical temperature ($T_c$), and gas constant ($R$) is

Hybridization of the central atoms in I$_3^-$, ClF$_3$ and SF$_4$, respectively, are

Reaction of BCl$_3$ with NH$_4$Cl at 140 °C produces compound P. Further, P reacts with NaBH$_4$ to give a colorless liquid Q. The reaction of Q with H$_2$O at 100 °C produces compound R and a diatomic gas S. Among the following, the CORRECT statement is

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)

The decreasing order of C=C bond length in the following complexes is \[ \text{I: [Cl$_3$Pt(CH$_2$=CH$_2$)]}^- \quad \text{II: [Cl$_3$Pt(C(CN)$_2$=C(CN)$_2$)]}^- \quad \text{III: [Cl$_3$Pt(CF$_2$=CH$_2$)]}^- \quad \text{IV: [Cl$_3$Pt(CF$_2$=CF$_2$)]}^- \]

Two sets of quantum numbers with the same number of radial nodes are