Mega Mock Quiz: Chemical Science: (17 Dec)

Considering the linear mode of coordination of nitrosyl, choose the correct set of isoelectronic species.

The bright yellow colour of [Cu(phen)₂]⁺ is due to :

No. of signals in ³¹P NMR of P₄S₃:

Fe porphyrins fail to exhibit reversible oxygen transport and cannot differentiate CO from O₂. However, the hemoglobin is free from both these pit falls. Among the following the correct set of statements is:

a. Fe²⁺ porphyrins undergo -oxodimer formation and the same is prevented in case of the hemoglobin.

b. Fe-CO bond strength is much low in case of hemoglobin when compared to the Fe²⁺ porphyrins.

c. While Fe-CO is linear, Fe-O₂ is bent and is recognized by hemoglobin.

d. The interlinked four monomeric units in the hemoglobin are responsible to overcome the pitfalls.

In the mass spectrum of 1,2-dibromoethane, approximate ratio of peaks at m/z values 186, 188,190 will be:

The correct structure of aspartic acid at given pH are:

For the following chemical reaction, predict the reagents P and Q required for the given products.

Calculate the ratio of molar conductance and equivalent conductance [λ_m/ λ_eq]of Ca₃(PO₄)₂ (0.1M in 100 mL).

For H₂O, the electronic transition from ground state to B₂ symmetry is :